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CAS No. : | 128577-47-9 | MDL No. : | MFCD00273345 |
Formula : | C9H8BrFO2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | OJBQAHZJVDWSFD-UHFFFAOYSA-N |
M.W : | 247.06 | Pubchem ID : | 18766370 |
Synonyms : |
|
Num. heavy atoms : | 13 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.22 |
Num. rotatable bonds : | 3 |
Num. H-bond acceptors : | 3.0 |
Num. H-bond donors : | 0.0 |
Molar Refractivity : | 50.52 |
TPSA : | 26.3 Ų |
GI absorption : | High |
BBB permeant : | Yes |
P-gp substrate : | No |
CYP1A2 inhibitor : | Yes |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -6.08 cm/s |
Log Po/w (iLOGP) : | 2.47 |
Log Po/w (XLOGP3) : | 2.43 |
Log Po/w (WLOGP) : | 2.78 |
Log Po/w (MLOGP) : | 3.11 |
Log Po/w (SILICOS-IT) : | 3.14 |
Consensus Log Po/w : | 2.79 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 0.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -3.05 |
Solubility : | 0.222 mg/ml ; 0.000899 mol/l |
Class : | Soluble |
Log S (Ali) : | -2.63 |
Solubility : | 0.586 mg/ml ; 0.00237 mol/l |
Class : | Soluble |
Log S (SILICOS-IT) : | -4.02 |
Solubility : | 0.0238 mg/ml ; 0.0000964 mol/l |
Class : | Moderately soluble |
PAINS : | 0.0 alert |
Brenk : | 1.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 1.92 |
Signal Word: | Danger | Class: | 8 |
Precautionary Statements: | P260-P264-P270-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P405-P501 | UN#: | 3261 |
Hazard Statements: | H302-H314 | Packing Group: | Ⅱ |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With N-Bromosuccinimide; Perbenzoic acid In tetrachloromethane; water for 6 h; Reflux | Procedure for bromination: 4-methyl-3-fluoro-benzoic acid methyl ester (18.3 mmol) in CC (40 mL) with NBS (3.9 g, 22 mmol) and benzoylperoxide with 25percent of water (0.55 g, 1.7 mmole) are stirred and heated to reflux for 6 h. Solvent is evaporated, a water solution of K2C03 is added and product is extracted with EtOAc to obtain a pale yellow solid. 4-(bromomethyl)-3-fluoro benzoic acid methyl ester Yield = quant (5.9g), ESI-MS: [M+H]+= 247 Da. |
100% | With N-Bromosuccinimide; Perbenzoic acid In tetrachloromethane; water for 6 h; Reflux | General procedure for bromination: 4-Methyl-3-fluoro benzoic acid methyl ester (18.3 mmol) in CCL, (40 mL) with NBS (3.9 g, 22 mmol) and benzoylperoxide with 25percent of water (0.55 g, 1.7 mmole) are stirred and heated to reflux for 6 h. Solvent is evaporated, a water solution of K2CO3 is added and product is extracted with EtOAc to obtain a pale yellow solid. 4-(Bromomethyl)-3-fluoro benzoic acid methyl ester Yield = quant (5.9g), ESI-MS: [M+H]+= 247 Da. |
93% | With tert.-butylhydroperoxide; cetyltrimethylammonim bromide; potassium bromide In water at 120℃; Microwave irradiation | General procedure: The reaction mixture was treated in a controlled microwavesynthesizer (Biotage Initiator+SP Wave model, 0–200 W at2.45 GHz, capped at 60 W during steady state) for severalminutes (the reaction attained 120 °C at 1 bar pressure). Thefinal products were isolated by column chromatographyusing an EtOAc–hexane gradient |
75% | With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane for 5 h; Heating / reflux | EXAMPLE 185 4-[(4-Chloro-benzenesulfonyl)-((R)-5,5-dimethyl-2-oxo-azepan-3-yl)-amino]-methyl}-3-fluoro-benzoic acid methyl ester; 4-Bromomethyl-3-fluoro-benzoic acid methyl ester 3-Fluoromethyl benzoic acid methyl ester (4.2 g, 25 mmol), N-bromosuccinimide (4.90 g, 27.50 mmol) and dibenzoyl peroxide (0.18 g, 0.75 mmol) were dissolved in CCl4 (100 ml) and the mixture was irradiated with a 150 W lamp and refluxed under an argon atmosphere for 5 h. The reaction mixture was allowed to cool to r.t. and then filtered. The concentrated filtrate was purified over silica gel (isopropyl ether/n-heptane 1:10 v/v): colourless oil 4.6 g (75percent); MS: m/e=248.0 (M), 167.1 (M-Br, 100percent). |
68% | With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane for 18 h; Heating / reflux | 4-Bromomethyl-3-fluorobenzoic acid methyl ester N-Bromosuccinimide (2.4g, 13.5mmol) and 2,2'-azobisisobutyronitrile (213mg, 1.3mmol) were added to a solution of 3-fluoro-4-methylbenzoic acid methyl ester (2.1g, 12.5mmol) in carbon tetrachloride (60ml) and heated at reflux for 18h. The mixture was cooled, filtered and reduced in vacuo. The residue was purified by flash column chromatography on silica gel (eluant EtOAc:hexanes, 10:90) to afford a colourless oil identified as 4-bromomethyl-3-fluorobenzoic acid methyl ester, yield 2.1g, 68percent. |
60.9% | With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In dichloromethane for 18 h; Reflux | Methyl 3-fluoro-4-methylbenzoate (8.500 g, 50.544 mmol), 1-bromopyrolidin-2,5-one (NBS, 9.446 g, 53.071 mmol) and azobisisobutyronitrile (AIBN, 0.415 g, 2.527 mmol) were mixed in dichloromethane (150 mL) at room temperature, and the mixture was heated under reflux for 18 hours, and then cooled to room temperature. Water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride solution, dried with magnesium sulfate anhydrous, filtered, and then concentrated under reduced pressure. The concentrate was purified by column chromatography (SiO2, 40 g cartridge; ethyl acetate/hexane = from 0percent to 50percent) and concentrated to give the title compound (7.600 g, 60.9percent) as a white solid. |
48% | With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane for 18 h; Reflux | INTERMEDIATE 33 - PREPARATION of Methyl 4-(bromomethyl)-3-fluorobenzoate. To a mixture of methyl 3-fluoro-4-methylbenzoate (0.630 g; 3.75 mmol) in carbon tetrachloride (30 mL) was added N-bromosuccinimide (0.840 g, 4.67 mmol) and benzoyl peroxide (0.094g; 0.375 mmol). The mixture was refluxed for 18 hours and the resulting suspension was concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (eluent 1 to 12percent ethyl acetate in heptane) to give 0.444 g (48percent) of methyl 4-(bromomethyl)-3-fluorobenzoate as an oily residue which was directly used in the next step. |
48% | With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane for 18 h; Reflux | To a mixture of methyl 3-fluoro-4-methylbenzoate (0.630 g; 3.75 mmol) in carbon tetrachloride (30 mL) was added N-bromosuccinimide (0.840 g, 4.67 mmol) and benzoyl peroxide (0.094 g; 0.375 mmol). The mixture was refluxed for 18 hours and the resulting suspension was concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (eluent 1 to 12percent ethyl acetate in heptane) to give 0.444 g (48percent) of methyl 4-(bromomethyl)-3-fluorobenzoate as an oily residue which was directly used in the next step. |
41% | With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane for 74 h; Heating / reflux | 3-Fluoro-4-methylbenzoic acid methyl ester from Example E3.1 (4.5g, 26.6mmol) was dissolved in carbon tetra;chloride (150ml). AIBN (457mg, 2.7mmol) and N-bromosuccinimide (5.2g, 29.3mmol) were added and the mixture was heated at reflux for 18h. The mixture was allowed to cool and further portions of AIBN (457mg, 2.7mmol) and W-bromosuccinimide (5.2g, 29.3mmol) were added. The mixture was heated at reflux for 56h. The mixture was allowed to cool and evaporated in vacuo. The residue was purified by flash chromatography on silica gel (eluant; 10percent EtOAc:90percent pet ether) to yield the title compound (2.7g, 41percent). |
200 mg | With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane at 80℃; | To a stirred solution of 3-fluoro-4-methylbenzoic acid (308 mg, 2 mmol) in DMF (3 mL) were added K2CO3 (552 mg, 4.0 mmol) and CH3I (0.2 mL, 3.0 mmol) at room temperature. The resulting mixture was stirred at the same temperature for 5 h. Then the reaction was quenched with water (15 mL) extracted with EtOAc (3 x 15 mL). The combined organic extracts were washed with brine (20 mL), dried over sodium sulfate, and concentrated under vacuum. The crude product was used directly into next step (220 mg, 1.3 mmol, 65percent). The methyl ester intermediate was dissolved in CC14 (5 mL). To the solution were added NBS (278 mg, 1.56 mmol) and AIBN (21 mg, 0.13 mmol). The resulting mixture was heated at 80 °C overnight. Then the reaction was quenched with water (15 mL) extracted with DCM (3 x 15 mL). The combined organic extracts were washed with brine (20 mL), dried over sodium sulfate, and concentrated under vacuum. The crude product was purified by flash chromatography (0 - 50percent EtOAc/hexanes) to afford as colorless solid (200 mg, 62percent). 1H NMR (400 MHz, CDC13) δ 7.81 (dd, / = 8.0, 1.3 Hz, 1H), 7.72 (dd, / = 10.2, 1.3 Hz, 1H), 7.47 (t, = 7.7 Hz, 1H), 4.52 (s, 2H), 3.99 - 3.78 (m, 3H). 13C NMR (100 MHz, CDCI3) δ 165.5 (d, = 2.7 Hz), 161.5, 159.0, 132.4 (d, = 7.7 Hz), 131.2 (d, = 3.0 Hz), 130.1 (d, = 14.7 Hz), 125.6 (d, = 3.6 Hz), 117.0, 116.8, 52.5, 24.6 (d, = 4.2 Hz). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
51% | With N-Bromosuccinimide; azobisisobutyronitrile In tetrachloromethane | Methyl 4-(bromomethyl)-3-fluorobenzoate. To a stirred mixture of N-bromosuccinimide (6.75 g, 37.5 mmol) in carbon tetrachloride (100 mL) was added a solution of methyl 3-fluoro-4-methylbenzoate (6.31 g, 37.5 mmol) in carbon tetrachloride (50 mL) and 2,2'-azobisisobutyronitrile [AIBN] (32 mg, 0.2 mmol). The reaction mixture was heated at 75 °C for 3 hours. To the flask was added additional AIBN (31 mg, 0.2 mmol) and the mixture was heated at reflux (~80 °C) for 2.5 hours. The solids were filtered and rinsed with carbon tetrachloride. The filtrate was washed with 10percent sodium thiosulfate (2x15 mL), saturated sodium bicarbonate (15 mL), and dried over sodium sulfate. Evaporation of the solvent on a rotary evaporator, followed by evacuation under high vacuum, gave a pale yellow oil (8.67 g). This liquid was purified by flash chromatography on a silica gel column eluted with 95:5 hexanes:ethyl acetate to afford a very pale yellow liquid (4.70 g, 51percent). (Where the term 'hexanes' is used, the term means that the solvent is a mixture of hexane isomers). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
64.7% | for 5 h; Reflux | Step 2: Synthesis of methyl 4-(bromomethyl)-3-fluorobenzoate: To a solution of the above product (21 g, 125 mmol) in CC14 (200 ml) was added a mixture of NBS (20 g, 113 mmol) and benzoyl peroxide (1.5 g, 6 mmol). The resulting solution was refluxed for 5 hours. Then the solvent was evaporated and the residue was dissolved in DCM (300 ml) and washed with H20 (200 ml x 3). The organic layer was dried with anhydrous Na2S04, filtered and evaporated to give the crude product as colorless oil (18 g, 64.7percent). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
48% | With dimethyl sulfoxide In hexane; dichloromethane; water; ethyl acetate | (1) Methyl 3-fluoro-4-bromomethylbenzoate (80 mg, 0.32 mmol), described in J. Med. Chem., 35(5) 877 (1992), was dissolved in a mixture of anhydrous dimethyl sulfoxide (4.5 ml) and anhydrous dichloromethane (3 ml). To the solution cooled to 0° C. was added dropwise with stirring triethylamine N-oxide dihydrate (180 mg, 1.62 mmol) and the mixture was stirred at room temperature for 2 hours. Water was added to the reaction mixture and this mixture was partitioned between a mixture of ethyl acetate and hexane (1:1) and water. The organic layer was washed with saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate and then concentrated under reduced pressure. The residue was chromatographed on a silica gel column using ethyl acetate-hexane (1:10) as the eluant to give methyl 3-fluoro-4-formylbenzoate (29 mg, yield 48percent) as a white solid. NMR spectrum (400 MHz, CDCl3) δ ppm: 3.97 (3H, s), 7.85 (1H, d, J=11 Hz), 7.9-8.0 (2H, m), 10.43 (1H, s). Mass spectrum m/z (EI): 182 (M+, 100percent). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With N-Bromosuccinimide; Perbenzoic acid; In tetrachloromethane; water; for 6h;Reflux; | Procedure for bromination: <strong>[87808-48-8]4-methyl-3-fluoro-benzoic acid methyl ester</strong> (18.3 mmol) in CC (40 mL) with NBS (3.9 g, 22 mmol) and benzoylperoxide with 25% of water (0.55 g, 1.7 mmole) are stirred and heated to reflux for 6 h. Solvent is evaporated, a water solution of K2C03 is added and product is extracted with EtOAc to obtain a pale yellow solid. 4-(bromomethyl)-3-fluoro benzoic acid methyl ester Yield = quant (5.9g), ESI-MS: [M+H]+= 247 Da. |
100% | With N-Bromosuccinimide; Perbenzoic acid; In tetrachloromethane; water; for 6h;Reflux; | General procedure for bromination: 4-Methyl-3-fluoro benzoic acid methyl ester (18.3 mmol) in CCL, (40 mL) with NBS (3.9 g, 22 mmol) and benzoylperoxide with 25% of water (0.55 g, 1.7 mmole) are stirred and heated to reflux for 6 h. Solvent is evaporated, a water solution of K2CO3 is added and product is extracted with EtOAc to obtain a pale yellow solid. 4-(Bromomethyl)-3-fluoro benzoic acid methyl ester Yield = quant (5.9g), ESI-MS: [M+H]+= 247 Da. |
93% | With tert.-butylhydroperoxide; cetyltrimethylammonim bromide; potassium bromide; In water; at 120℃; under 750.075 Torr;Microwave irradiation; | General procedure: The reaction mixture was treated in a controlled microwavesynthesizer (Biotage Initiator+SP Wave model, 0-200 W at2.45 GHz, capped at 60 W during steady state) for severalminutes (the reaction attained 120 C at 1 bar pressure). Thefinal products were isolated by column chromatographyusing an EtOAc-hexane gradient |
75% | With N-Bromosuccinimide; dibenzoyl peroxide; In tetrachloromethane; for 5h;Heating / reflux; | EXAMPLE 185 4-[(4-Chloro-benzenesulfonyl)-((R)-5,5-dimethyl-2-oxo-azepan-3-yl)-amino]-methyl}-3-fluoro-benzoic acid methyl ester; 4-Bromomethyl-3-fluoro-benzoic acid methyl ester 3-Fluoromethyl benzoic acid methyl ester (4.2 g, 25 mmol), N-bromosuccinimide (4.90 g, 27.50 mmol) and dibenzoyl peroxide (0.18 g, 0.75 mmol) were dissolved in CCl4 (100 ml) and the mixture was irradiated with a 150 W lamp and refluxed under an argon atmosphere for 5 h. The reaction mixture was allowed to cool to r.t. and then filtered. The concentrated filtrate was purified over silica gel (isopropyl ether/n-heptane 1:10 v/v): colourless oil 4.6 g (75%); MS: m/e=248.0 (M), 167.1 (M-Br, 100%). |
68% | With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); In tetrachloromethane; for 18h;Heating / reflux; | 4-Bromomethyl-3-fluorobenzoic acid methyl ester N-Bromosuccinimide (2.4g, 13.5mmol) and 2,2'-azobisisobutyronitrile (213mg, 1.3mmol) were added to a solution of 3-fluoro-4-methylbenzoic acid methyl ester (2.1g, 12.5mmol) in carbon tetrachloride (60ml) and heated at reflux for 18h. The mixture was cooled, filtered and reduced in vacuo. The residue was purified by flash column chromatography on silica gel (eluant EtOAc:hexanes, 10:90) to afford a colourless oil identified as 4-bromomethyl-3-fluorobenzoic acid methyl ester, yield 2.1g, 68%. |
60.9% | With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); In dichloromethane; for 18h;Reflux; | <strong>[87808-48-8]Methyl 3-fluoro-4-methylbenzoate</strong> (8.500 g, 50.544 mmol), 1-bromopyrolidin-2,5-one (NBS, 9.446 g, 53.071 mmol) and azobisisobutyronitrile (AIBN, 0.415 g, 2.527 mmol) were mixed in dichloromethane (150 mL) at room temperature, and the mixture was heated under reflux for 18 hours, and then cooled to room temperature. Water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride solution, dried with magnesium sulfate anhydrous, filtered, and then concentrated under reduced pressure. The concentrate was purified by column chromatography (SiO2, 40 g cartridge; ethyl acetate/hexane = from 0% to 50%) and concentrated to give the title compound (7.600 g, 60.9%) as a white solid. |
48% | With N-Bromosuccinimide; dibenzoyl peroxide; In tetrachloromethane; for 18h;Reflux; | INTERMEDIATE 33 - PREPARATION of Methyl 4-(bromomethyl)-3-fluorobenzoate. To a mixture of <strong>[87808-48-8]methyl 3-fluoro-4-methylbenzoate</strong> (0.630 g; 3.75 mmol) in carbon tetrachloride (30 mL) was added N-bromosuccinimide (0.840 g, 4.67 mmol) and benzoyl peroxide (0.094g; 0.375 mmol). The mixture was refluxed for 18 hours and the resulting suspension was concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (eluent 1 to 12% ethyl acetate in heptane) to give 0.444 g (48%) of methyl 4-(bromomethyl)-3-fluorobenzoate as an oily residue which was directly used in the next step. |
48% | With N-Bromosuccinimide; dibenzoyl peroxide; In tetrachloromethane; for 18h;Reflux; | To a mixture of <strong>[87808-48-8]methyl 3-fluoro-4-methylbenzoate</strong> (0.630 g; 3.75 mmol) in carbon tetrachloride (30 mL) was added N-bromosuccinimide (0.840 g, 4.67 mmol) and benzoyl peroxide (0.094 g; 0.375 mmol). The mixture was refluxed for 18 hours and the resulting suspension was concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (eluent 1 to 12% ethyl acetate in heptane) to give 0.444 g (48%) of methyl 4-(bromomethyl)-3-fluorobenzoate as an oily residue which was directly used in the next step. |
41% | With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); In tetrachloromethane; for 74h;Heating / reflux; | 3-Fluoro-4-methylbenzoic acid methyl ester from Example E3.1 (4.5g, 26.6mmol) was dissolved in carbon tetrachloride (150ml). AIBN (457mg, 2.7mmol) and N-bromosuccinimide (5.2g, 29.3mmol) were added and the mixture was heated at reflux for 18h. The mixture was allowed to cool and further portions of AIBN (457mg, 2.7mmol) and W-bromosuccinimide (5.2g, 29.3mmol) were added. The mixture was heated at reflux for 56h. The mixture was allowed to cool and evaporated in vacuo. The residue was purified by flash chromatography on silica gel (eluant; 10% EtOAc:90% pet ether) to yield the title compound (2.7g, 41%). |
With N-Bromosuccinimide; azobisisobutyronitrile; In tetrachloromethane; | (C) A mixture of <strong>[87808-48-8]methyl 3-fluoro-4-methylbenzoate</strong> (4.3 g), N-bromosuccinimide (4.5 g) and AIBN (20 mg) in carbon tetrachloride was irradiated with a 100 W Tungsten lamp at reflux for 1 hour. The mixture was filtered through diatomaceous earth, and evaporated to give methyl 3-fluoro-4-(bromomethyl)benzoate (5.0 g). | |
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); In tetrachloromethane; for 4h;Heating / reflux; | Production Example 15-1: Methyl 4-bromomethyl-3-fluorobenzenecarboxylate: 3-Fluoro-4-methylbenzenecarboxylic acid (1.0 g) was dissolved in methanol (33 mL), and thionyl chloride (0.72 mL) was added thereto and heated under reflux for 1 hour. After the reaction, the reaction solution was entirely concentrated, the resulting residue (500 mg) was dissolved in carbon tetrachloride (3 mL), and N-bromosuccinimide (hereafter abbreviated as "NBS") (510 mg) and 2,2'-azobis(isobutyronitrile) (hereafter abbreviated as "AIBN") (50 mg) were added in that order to it, and heated under reflux for 4 hours. After the reaction, the reaction solution was entirely concentrated, and the resulting residue was purified through silica gel column chromatography (hexane/ethyl acetate = 95/5) to obtain the entitled compound (405 mg). | |
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); In tetrachloromethane; for 6h;Heating / reflux; UV-irradiation; | Methyl [3-FLUORO-4-METHYL] benzoate (0.97 g), N-bromosuccinimide (1.13 g) and azobisisobutyronitrile (0.02 g) were added to carbon tetrachloride (2 mL) and the mixture was heated under reflux, whilst being irradiated with a [100W] lamp, for 6h. The reaction mixture was concentrated in vacuo and the residue was partitioned between ethyl acetate and 1 M hydrochloric acid. The organic phase was washed with brine, dried [(MGS04)] and filtered to give a crude yellow oil which was purified by flash chromatography, eluting with 5% ethyl acetate in isohexane to give the title compound as a colourless oil (0.63 g). ['H] NMR [8 (CDCI3)] 3.93 (3H, s), 4.52 (2H, d), 7.47 [(1H,] t), 7.73 [(1H,] dd), 7.81 [(1H,] dd) | |
200 mg | With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); In tetrachloromethane; at 80℃; | To a stirred solution of 3-fluoro-4-methylbenzoic acid (308 mg, 2 mmol) in DMF (3 mL) were added K2CO3 (552 mg, 4.0 mmol) and CH3I (0.2 mL, 3.0 mmol) at room temperature. The resulting mixture was stirred at the same temperature for 5 h. Then the reaction was quenched with water (15 mL) extracted with EtOAc (3 x 15 mL). The combined organic extracts were washed with brine (20 mL), dried over sodium sulfate, and concentrated under vacuum. The crude product was used directly into next step (220 mg, 1.3 mmol, 65%). The methyl ester intermediate was dissolved in CC14 (5 mL). To the solution were added NBS (278 mg, 1.56 mmol) and AIBN (21 mg, 0.13 mmol). The resulting mixture was heated at 80 C overnight. Then the reaction was quenched with water (15 mL) extracted with DCM (3 x 15 mL). The combined organic extracts were washed with brine (20 mL), dried over sodium sulfate, and concentrated under vacuum. The crude product was purified by flash chromatography (0 - 50% EtOAc/hexanes) to afford as colorless solid (200 mg, 62%). 1H NMR (400 MHz, CDC13) delta 7.81 (dd, / = 8.0, 1.3 Hz, 1H), 7.72 (dd, / = 10.2, 1.3 Hz, 1H), 7.47 (t, = 7.7 Hz, 1H), 4.52 (s, 2H), 3.99 - 3.78 (m, 3H). 13C NMR (100 MHz, CDCI3) delta 165.5 (d, = 2.7 Hz), 161.5, 159.0, 132.4 (d, = 7.7 Hz), 131.2 (d, = 3.0 Hz), 130.1 (d, = 14.7 Hz), 125.6 (d, = 3.6 Hz), 117.0, 116.8, 52.5, 24.6 (d, = 4.2 Hz). |
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); In tetrachloromethane; at 78℃; for 16h; | To a solution of methyl 3-fluoro-4-methyl-benzoate (9.90 g, 58.9 mmol) in carbon tetrachloride (120 mL) was added 2,2-azobisisobutyronitrile (966 mg, 5.89 mmol) and n- bromosuccinimide (11.0 g, 61.8 mmol) at rt, then the mixture was heated to reflux at 78 C for 16 hours. On completion, the solvent was removed in vacuo, and the residue was dissolved with ethyl acetate (200 mL), washed with water (2 X 50mL), brine (1 X 50 mL), dried and concentrated to give the title compound (crude). NMR (400 MHz, CDCh) delta = 7.83 (dd, J = 1.1, 7.9 Hz, 1H), 7.74 (dd, J= 1.1, 9.9 Hz, 1H), 7.49 (t, J= 7.7 Hz, 1H), 4.53 (s, 2H), 3.94 (s, 3H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With Caswell No. 744A; In N,N-dimethyl-formamide; for 18h; | Sodium azide (609mg) was added to a solution of 4-bromomethyl-3-fluorobenzoic acid methyl ester from Example E3.2 (2.1g, 8.5mmol) in DMF (30ml). The mixture was stirred for 18h, diluted with EtOAc, washed with water and brine and concentrated in vacuo to give a colourless oil identified as the title compound (1.8 g, 100%) . |
100% | With Caswell No. 744A; In DMF (N,N-dimethyl-formamide); for 18h; | 4-Azidomethyl-3-fluorobenzoic acid methyl ester Sodium azide (609mg, 9.36mmol) was added to a solution of 4-bromomethyl-3-fluorobenzoic acid methyl ester (2.1g, 8.5mmol) in DMF (30ml) and stirred for 18h. The mixture was diluted with EtOAc, washed with water and brine, dried and reduced in vacuo to afford a colourless oil identified as 4-azidomethyl-3-fluorobenzoic acid methyl ester, yield 1.78g, 100%. |
88.6% | With Caswell No. 744A; In N,N-dimethyl-formamide; at 50℃; for 5h; | Methyl 4-(bromomethyl)-3-fluorobenzoate (2.000 g, 8.095 mmol) and sodium azide (0.632 g, 9.714 mmol) were dissolved in N,N-dimethylformamide (50 mL) at 50C, after which the resulting solution was stirred at the same temperature for 5 hours, and then a reaction was finished by lowering a temperature to room temperature. Water was poured into the reaction mixture and an extraction was performed with ethyl acetate. An organic layer was washed with saturated ammonium chloride aqueous solution, dehydrated with anhydrous sodium sulfate, filtered, and concentrated under reduced pressure. The resulting concentrate was purified via column chromatography (S1O2, 24 g cartridge; ethyl acetate/hexane = 0 to 20%), and concentrated to obtain methyl 4-(azidomethyl)-3-fluorobenzoate (1.500 g, 88.6%) in a yellow oil form. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
48% | With dimethyl sulfoxide; In hexane; dichloromethane; water; ethyl acetate; | (1) Methyl 3-fluoro-4-bromomethylbenzoate (80 mg, 0.32 mmol), described in J. Med. Chem., 35(5) 877 (1992), was dissolved in a mixture of anhydrous dimethyl sulfoxide (4.5 ml) and anhydrous dichloromethane (3 ml). To the solution cooled to 0 C. was added dropwise with stirring triethylamine N-oxide dihydrate (180 mg, 1.62 mmol) and the mixture was stirred at room temperature for 2 hours. Water was added to the reaction mixture and this mixture was partitioned between a mixture of ethyl acetate and hexane (1:1) and water. The organic layer was washed with saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate and then concentrated under reduced pressure. The residue was chromatographed on a silica gel column using ethyl acetate-hexane (1:10) as the eluant to give methyl 3-fluoro-4-formylbenzoate (29 mg, yield 48%) as a white solid. NMR spectrum (400 MHz, CDCl3) delta ppm: 3.97 (3H, s), 7.85 (1H, d, J=11 Hz), 7.9-8.0 (2H, m), 10.43 (1H, s). Mass spectrum m/z (EI): 182 (M+, 100%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With N-Bromosuccinimide; In carbontetrachloride (CCl4); | Methyl-3-fluoro-4-bromomethyl benzoate (6) A mixture of 7.32 g (43.6 mmol) methyl-3-fluoro-4-methylbenzoate, 4.92 g N-bromosuccinimide (NBS) and a few mg of 2,2-azobisisobutyronitrile (AIBN) in 80 ml of carbontetrachloride (CCl4) were brought to reflux and illuminated with a high intensity lamp. The reaction was rapid and within 2 hours, all of the NBS has been converted to succinimide. TLC and NMR analysis indicated a 1:1 mixture of product and starting material as judged by the appearance of a new signal at 4.49 corresponding to bromination of the methyl group. The mixture was worked up by filtering the succinimide and washing the CCl4 solution, first with aqueous sodium sulfate (Na2 S2 O3) and then with aqueous sodium bicarbonate (NaHCO3). The product obtained after drying and removal of the solvent was recycled with additional NBS and treated as above to yield 7.46 g of yellow oil which was an 8:1 mixture of product and starting material and was used as such in the next step. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
51% | With N-Bromosuccinimide; azobisisobutyronitrile; In tetrachloromethane; | Methyl 4-(bromomethyl)-3-fluorobenzoate. To a stirred mixture of N-bromosuccinimide (6.75 g, 37.5 mmol) in carbon tetrachloride (100 mL) was added a solution of <strong>[87808-48-8]methyl 3-fluoro-4-methylbenzoate</strong> (6.31 g, 37.5 mmol) in carbon tetrachloride (50 mL) and 2,2'-azobisisobutyronitrile [AIBN] (32 mg, 0.2 mmol). The reaction mixture was heated at 75 C for 3 hours. To the flask was added additional AIBN (31 mg, 0.2 mmol) and the mixture was heated at reflux (~80 C) for 2.5 hours. The solids were filtered and rinsed with carbon tetrachloride. The filtrate was washed with 10% sodium thiosulfate (2x15 mL), saturated sodium bicarbonate (15 mL), and dried over sodium sulfate. Evaporation of the solvent on a rotary evaporator, followed by evacuation under high vacuum, gave a pale yellow oil (8.67 g). This liquid was purified by flash chromatography on a silica gel column eluted with 95:5 hexanes:ethyl acetate to afford a very pale yellow liquid (4.70 g, 51%). (Where the term 'hexanes' is used, the term means that the solvent is a mixture of hexane isomers). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With N-Bromosuccinimide;dibenzoyl peroxide; In tetrachloromethane; at 80℃; | After stirring a suspension of <strong>[87808-48-8]3-fluoro-4-methyl-benzoic acid methyl ester</strong> (500 mg, 2.97 mmol), l-bromo-pyrrolidine-2,5-dione (1.73 g, 8.33 mmol) and benzoyl peroxide (53.1 mg, 0.47 mmol) in tetrachloromethane (36 mL) at 800C overnight the mixture was concentrated in vacuo and the residue was partitioned between EA (150 mL) and water (100 mL). The organic layer was washed with sat. NaHCC^ solution (1 x 100 mL), water (1 x 100 mL) and sat. NaCl solution (1 x 100 mL). The organic layer was dried over Na2SC>4, filtered and concentrated in vacuo. The residue, a mixture of 4-bromomethyl-3-fluoro-benzoic acid methyl ester and 4-dibromornethyl-3-fluoro-benzoic acid methyl ester, was used in the following step without further purification. The residue (50 mg, 0.30 mmol) was dissolved in acetone (2 mL) and water (0.4 mL) and AgNtheta3 (171 mg, 0.87 mmol) were added. The flask was covered with aluminum foil to avoid decomposition of the AgNU3. The mixture was <n="85"/>stirred at RT overnight. After filtration of th ixture and evaporation of the solvent, the residue was partitioned between EA (30 mL) and sat. NaHCO3 solution (15 mL). The organic layer was washed with water (1 x 15 mL) and sat. NaCl solution (1 x 15 mL), dried over Na2SO4, filtered and concentrated in vacuo to give the title compound. GC/MS (m/z): 182.2 |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
66% | With sodium carbonate;tetrakis(triphenylphosphine) palladium(0); In 1,2-dimethoxyethane; water; at 130℃; for 0.333333h;Microwave irradiation; | INTERMEDIATE 34 - PREPARATION of Methyl 3-fluoro-4-(3-fluorobenzyl)benzoate. Methyl 4-(bromomethyl)-3-fluorobenzoate (0.285 g; 1.15 mmol) was suspended in a mixture of water (1 mL) and 1 ,2-dimethoxyethane (3 mL) and 3-fluorophenylboronic acid (0.183 g; 1.27 mmol), tetrakis(triphenylphosphine)palladium(0) (0.067 g; 0.0058 mmol) and sodium carbonate (0.246 g; 2.31 mmol) were successively added. The resulting suspension was heated at 130 C in a microwave oven for 20 minutes. The reaction mixture was diluted with ethyl acetate, and washed with water. The organic layer was concentrated under reduced pressure and the residue was purified by flash chromatography on silica gel (eluent 1 to 12% of ethyl acetate in heptane) to give 0.199 g (66%) of methyl 3-fluoro-4-(3- fluorobenzyl)benzoate as an oily residue which was directly used in the next step. |
66% | With tetrakis(triphenylphosphine) palladium(0); sodium carbonate; In 1,2-dimethoxyethane; water; at 130℃; for 0.333333h;Microwave irradiation; | Methyl 4-(bromomethyl)-3-fluorobenzoate (0.285 g; 1.15 mmol) was suspended in a mixture of water (1 mL) and 1,2-dimethoxyethane (3 mL) and 3-fluorophenylboronic acid (0.183 g; 1.27 mmol), tetrakis(triphenylphosphine)palladium(0) (0.067 g; 0.0058 mmol) and sodium carbonate (0.246 g; 2.31 mmol) were successively added. The resulting suspension was heated at 130 C. in a microwave oven for 20 minutes. The reaction mixture was diluted with ethyl acetate, and washed with water. The organic layer was concentrated under reduced pressure and the residue was purified by flash chromatography on silica gel (eluent 1 to 12% of ethyl acetate in heptane) to give 0.199 g (66%) of methyl 3-fluoro-4-(3-fluorobenzyl)benzoate as an oily residue which was directly used in the next step. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
64.7% | With N-Bromosuccinimide; dibenzoyl peroxide; for 5h;Reflux; | Step 2: Synthesis of methyl 4-(bromomethyl)-3-fluorobenzoate: To a solution of the above product (21 g, 125 mmol) in CC14 (200 ml) was added a mixture of NBS (20 g, 113 mmol) and benzoyl peroxide (1.5 g, 6 mmol). The resulting solution was refluxed for 5 hours. Then the solvent was evaporated and the residue was dissolved in DCM (300 ml) and washed with H20 (200 ml x 3). The organic layer was dried with anhydrous Na2S04, filtered and evaporated to give the crude product as colorless oil (18 g, 64.7%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
A solution of <strong>[87808-48-8]3-fluoro-4-methyl-benzoic acid methyl ester</strong> (2.26 g, 13.4 mmol) in carbon tetrachloride (168 mL) was treated with N-bromosuccinimide (6.7 g, 37.6 mmol) and 2,2'-azobis(2-methylpropionitrile) (110 mg, 99.4 muL, 672 mumol). The reaction was heated to reflux at 100 C. for 20 h. At this time, the reaction was cooled to 25 C. and then concentrated in vacuo. The residue was dissolved in ethyl acetate (100 mL) and was then washed with water (1*150 mL), a saturated aqueous sodium bisulfite solution (1*150 mL) and a saturated sodium chloride solution (1*150 mL). The organics were dried over sodium sulfate, filtered and concentrated in vacuo. The residue was dissolved in acetone (80 mL) and water (18 mL) (0.14M, 5:1) and was treated with silver nitrate (6.39 g, 37.6 mmol). The flask was covered with tin foil and the hood light was turned off. The reaction was stirred under these conditions for 24 h. At this time, the reaction was filtered through a coarse sintered glass funnel. The filtrate was concentrated in vacuo. The resulting solution was transferred to a separatory funnel, diluted with methylene chloride (100 mL) and treated with a saturated aqueous sodium bicarbonate solution (1*100 mL). Upon addition of the saturated aqueous sodium bicarbonate solution, a white precipitate resulted. This precipitate was removed by filtration through a coarse sintered glass funnel and was washed with methylene chloride (20 mL). The filtrate was transferred to another separatory funnel and washed with water (1*100 mL) and a saturated aqueous sodium chloride solution (1*100 mL), dried over sodium sulfate, filtered and concentrated in vacuo. Flash chromatography (40 g, 5-15% ethyl acetate/hexanes) afforded a ~1:1 mixture of 3-fluoro-4-formyl-benzoic acid methyl ester and 4-bromomethyl-3-fluoro-benzoic acid methyl ester (1.56 g) as colorless oil. The material was used without further purification. A mixture of 1-(2-phenylamino-pyridin-3-yl)-ethanone (700 mg, 3.3 mmol) in methanol (16.5 mL) at 25 C. was treated with 3-fluoro-4-formyl-benzoic acid methyl ester (601 mg, 3.3 mmol, calculated from 50% mixture) and sodium methoxide in methanol (4.37M, 1.51 mL, 6.6 mmol). The reaction was stirred at 25 C. for 48 h. At this time, the reaction was diluted with water (50 mL), neutralized with a 2N aqueous hydrochloric acid solution, and extracted with methylene chloride (3*75 mL). The combined organics were dried over sodium sulfate and filtered. Silica gel was added to the filtrate, concentrated in vacuo and dried under high vacuum. Flash Chromatography (40 g silica column, 1% methanol/methylene chloride) afforded 3-fluoro-4-[(E)-3-oxo-3-(2-phenylamino-pyridin-3-yl)-propenyl]-benzoic acid methyl ester (1 g, 80.6%) as a red solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
40% | NaH (60%, 48.5mg, 1.2lmmol) was added to a solution of (3) (200mg, 1.l5mmol) in DMF (7mL) at 5C under N2(g). The reaction mixture was stirred for 20mm then<strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (371mg, 1.5mmol) was added as a solution in DMF (3mL). The stirring was continued at 70C for lh. Reaction cooled to rt and poured onto water (lOOmL). Brine (25mL) was added and the aqueous was extracted with EtOAc (2 x lOOmL). Combined organics were dried over Na2SO4, filtered and concentrated in vacuo. Purification by flash column chromatography withEtOAc/CH2CI2 (0:1-1:0) then EtOAc/MeOH (1:0-4:1) yielded (4) (1 58mg, 40%).1H NMR (500 MHz, Chloroform-d), OH ppm: 8.87 (d, J=1.4 Hz, 1H), 8.76-8.78 (m,1H), 8.36-8.40 (m, 2H), 8.31 (d, J=2.6 Hz, 1H), 7.69 (d, J=9.2 Hz, 2H), 7.30 (t, J=7.6Hz, 1H), 6.92 (dd, J=6.1, 1.2 Hz, 1H), 5.50 (5, 2H), 3.87 (5, 3H).LCMS (ES): Found 340.0 [M+H]. | |
40% | NaH (60%, 48.5mg, 1 .21 mmol) was added to a solution of (3) (200mg, 1 .15mmol) in DMF (7mL) at 5C under N2(g). The reaction mixture was stirred for 20min then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (371 mg, 1 .5mmol) was added as a solution in DMF (3ml_). The stirring was continued at 70C for 1 h. Reaction cooled to rt and poured onto water (100ml_). Brine (25ml_) was added and the aqueous was extracted with EtOAc (2 x 100ml_). Combined organics were dried over Na2S04, filtered and concentrated in vacuo. Purification by flash column chromatography with EtOAc/CH2CI2 (0: 1 -1 :0) then EtOAc/MeOH (1 :0- 4: 1 ) yielded (4) (158mg, 40%). 1 H NMR (500 MHz, Chloroform-d), δΗ ppm: 8.87 (d, J=1 .4 Hz, 1 H), 8.76-8.78 (m, 1 H), 8.36-8.40 (m, 2H), 8.31 (d, J=2.6 Hz, 1 H), 7.69 (d, J=9.2 Hz, 2H), 7.30 (t, J=7.6 Hz, 1 H), 6.92 (dd, J=6.1 , 1 .2 Hz, 1 H), 5.50 (s, 2H), 3.87 (s, 3H). LCMS (ES): Found 340.0 [M+H]+. | |
40% | Example EE (0445) N-Hydroxy-4-[(pyrazin-2-yl)(pyrimidin-4-yl)amino]methyl}benzami (0446) (0447) (0448) EE NaH (60%, 48.5mg, 1.21 mmol) was added to a solution of (3) (200mg, 1.15mmol) in DMF (7mL) at 5C under N2(g). The reaction mixture was stirred for 20min then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (371 mg, 1.5mmol) was added as a solution in DMF (3ml_). The stirring was continued at 70C for 1 h. Reaction cooled to rt and poured onto water (100ml_). Brine (25ml_) was added and the aqueous layer was extracted with EtOAc (2 x 100ml_). Combined organics were dried over Na2S04, filtered and concentrated in vacuo. Purification by flash column chromatography with EtOAc/CH2CI2 (0: 1-1 :0) then EtOAc/MeOH (1 :0-4: 1) yielded (4) (158mg, 40%). (0449) 1 H NMR (500 MHz, Chloroform-d), δΗ ppm: 8.87 (d, J=1.4 Hz, 1 H), 8.76-8.78 (m, 1 H), 8.36-8.40 (m, 2H), 8.31 (d, J=2.6 Hz, 1 H), 7.69 (d, J=9.2 Hz, 2H), 7.30 (t, J=7.6 Hz, 1 H), 6.92 (dd, J=6.1 , 1.2 Hz, 1 H), 5.50 (s, 2H), 3.87 (s, 3H). (0450) LCMS (ES): Found 340.0 [M+H]+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
50% | HHNaH (60%, 49mg, 1.2lmmol) was added to a solution of (3) (200 mg, 1.lSmmol) inDMF (7mL) at 5C under N2(g). The reaction mixture was stirred for 20mm then<strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (371mg, 1.Smmol) was added as a solution in DMF (3mL). The stirring was continued at 70C for lh. Reaction cooled to rt and poured onto water (lOOmL). Brine (25mL) was added and the aqueous was extracted with EtOAc (2 x lOOmL). Combined organics were dried over Na2504, filtered and concentrated in vacuo. Purification by flash column chromatography withCH2CI2/EtOAc (1:0-0:1) then EtOAc/MeOH (1:0-4:1) yielded (4) (195mg, 50%).1H NMR (500 MHz, Chloroform-d), OH ppm: 8.65 (d, ...&-1.4 Hz, 2H), 8.25 (dd, J=2.5,1.5 Hz, 2H), 8.18 (d, J=2.6 Hz, 2H), 7.65-7.72 (m, 2H), 7.31 (t, J=7.8 Hz, 1H), 5.53(s, 2H), 3.87 (s, 3H).LCMS (ES): Found 339.9 [M+H]. | |
50% | NaH (60%, 49mg, 1 .21 mmol) was added to a solution of (3) (200 mg, 1 .15mmol) in DMF (7mL) at 5C under N2(g). The reaction mixture was stirred for 20min then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (371 mg, 1 .5mmol) was added as a solution in DMF (3ml_). The stirring was continued at 70C for 1 h. Reaction cooled to rt and poured onto water (100ml_). Brine (25ml_) was added and the aqueous was extracted with EtOAc (2 x 100ml_). Combined organics were dried over Na2S04, filtered and concentrated in vacuo. Purification by flash column chromatography with CH2CI2/EtOAc (1 :0-0: 1 ) then EtOAc/MeOH (1 :0-4: 1 ) yielded (4) (195mg, 50%). 1 H NMR (500 MHz, Chloroform-d), δΗ ppm: 8.65 (d, J=1 .4 Hz, 2H), 8.25 (dd, J=2.5, 1 .5 Hz, 2H), 8.18 (d, J=2.6 Hz, 2H), 7.65-7.72 (m, 2H), 7.31 (t, J=7.8 Hz, 1 H), 5.53 (s, 2H), 3.87 (s, 3H). LCMS (ES): Found 339.9 [M+H]+. | |
50% | Example HH (0482) -[Bis(pyrazin-2-yl)amino]methyl}-3-fluoro-N-hydroxybenzamide (0483) (0484) HH (0485) NaH (60%, 49mg, 1.21 mmol) was added to a solution of (3) (200 mg, 1.15mmol) in DMF (7ml_) at 5C under N2(g). The reaction mixture was stirred for 20min then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (371 mg, 1.5mmol) was added as a solution in DMF (3ml_). The stirring was continued at 70C for 1 h. Reaction cooled to rt and poured onto water (100ml_). Brine (25ml_) was added and the aqueous was extracted with EtOAc (2 x 100ml_). Combined organics were dried over Na2S04, filtered and concentrated in vacuo. Purification by flash column chromatography with CH2CI2/EtOAc (1 :0-0:1) then EtOAc/MeOH (1 :0-4: 1) yielded (4) (195mg, 50%). (0486) 1 H NMR (500 MHz, Chloroform-d), δΗ ppm: 8.65 (d, J=1.4 Hz, 2H), 8.25 (dd, J=2.5, 1.5 Hz, 2H), 8.18 (d, J=2.6 Hz, 2H), 7.65-7.72 (m, 2H), 7.31 (t, J=7.8 Hz, 1 H), 5.53 (s, 2H), 3.87 (s, 3H). (0487) LCMS (ES): Found 339.9 [M+H]+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
74% | KKNaH (60%, 41.5mg, 1 .O4mmol) was added to a solution of (3) (200mg, 0.99mmol) in DMF (l0mL) at 5C under N2(g). The reaction mixture was stirred for 20mm then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (318mg, 1.29mmol) was added. Thestirring was continued at 70C under N2(g) for lh. The reaction cooled to rt and poured onto water (l5OmL) and brine (5OmL), the aqueous extracted with EtOAc (3 x lOOmL). Combined organics were dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by flash column chromatography with CH2CI2/EtOAc (1:0-0:1) then EtOAc/MeOH (1:0-4:1) to give (4) (269mg, 74%).1H NMR (500 MHz, Chloroform-d), OH ppm: 8.09 (dd, J=4.7, 1.4 Hz, 1H), 8.06 (dd,J=2.6, 1.6 Hz, 1H), 7.90 (d, J=2.7 Hz, 1H), 7.80 (d, J=1.3 Hz, 1H), 7.68 (dd, J=8.0,1.4 Hz, 1H), 7.62 (dd, J=10.5, 1.4 Hz, 1H), 7.56 (t, J=7.7 Hz, 1H), 7.27 (dd, J=8.3,1.5 Hz, 1H), 7.18 (dd, J=8.2, 4.7 Hz, 1H), 5.43 (5, 2H), 3.86 (5, 3H), 3.77 (5, 3H).LCMS (ES): Found 368.9 [M+H]. | |
74% | NaH (60%, 41.5mg, 1.04mmol) was added to a solution of (3) (200mg, 0.99mmol) in DMF (10mL) at 5C under N2(g). The reaction mixture was stirred for 20min then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (318mg, 1.29mmol) was added. The stirring was continued at 70C under N2(g) for 1h. The reaction cooled to rt and poured onto water (150ml_) and brine (50ml_), the aqueous extracted with EtOAc (3 x 100ml_). Combined organics were dried over Na2S04, filtered and concentrated in vacuo. The residue was purified by flash column chromatography with CH2CI2/EtOAc (1:0-0:1) then EtOAc/MeOH (1:0-4:1) to give (4) (269mg, 74%). 1H NMR (500 MHz, Chloroform-d), δΗ ppm: 8.09 (dd, J=4.7, 1.4 Hz, 1H), 8.06 (dd, J=2.6, 1.6 Hz, 1H), 7.90 (d, J=2.7 Hz, 1H), 7.80 (d, J=1.3 Hz, 1H), 7.68 (dd, J=8.0, 1.4 Hz, 1H), 7.62 (dd, J=10.5, 1.4 Hz, 1H), 7.56 (t, J=7.7 Hz, 1H), 7.27 (dd, J=8.3, 1.5 Hz, 1H), 7.18 (dd, J=8.2, 4.7 Hz, 1H), 5.43 (s, 2H), 3.86 (s, 3H), 3.77 (s, 3H). LCMS (ES): Found 368.9 [M+H]+. | |
74% | Example KK (0510) 3-Fluoro-N-hydroxy-4-[(3-methoxypyridin-2-yl)(pyrazin-2- yl)amino]methyl}benzamide (0511) (0512) NaH (60%, 41.5mg, 1.04mmol) was added to a solution of (3) (200mg, 0.99mmol) in DMF (10ml_) at 5C under N2(g). The reaction mixture was stirred for 20min then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (318mg, 1.29mmol) was added. The stirring was continued at 70C under N2(g) for 1 h. The reaction cooled to rt and poured onto water (150ml_) and brine (50ml_), the aqueous layer extracted with EtOAc (3 x 100ml_). Combined organics were dried over Na2S04, filtered and concentrated in vacuo. The residue was purified by flash column chromatography with CH2CI2/EtOAc (1 :0-0: 1) then EtOAc/MeOH (1 :0-4:1) to give (4) (269mg, 74%). 1 H NMR (500 MHz, Chloroform-d), δΗ ppm: 8.09 (dd, J=4.7, 1.4 Hz, 1 H), 8.06 (dd, J=2.6, 1.6 Hz, 1 H), 7.90 (d, J=2.7 Hz, 1 H), 7.80 (d, J=1.3 Hz, 1 H), 7.68 (dd, J=8.0, (0513) 1.4 Hz, 1 H), 7.62 (dd, J=10.5, 1.4 Hz, 1 H), 7.56 (t, J=7.7 Hz, 1 H), 7.27 (dd, J=8.3, (0514) 1.5 Hz, 1 H), 7.18 (dd, J=8.2, 4.7 Hz, 1 H), 5.43 (s, 2H), 3.86 (s, 3H), 3.77 (s, 3H). LCMS (ES): Found 368.9 [M+H]+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
55% | NaH (60%, 41.5mg, 1 .O4mmol) was added to a solution of (3) (200mg, 0.99mmol) inDMF (l0mL) at 5C under N2(g). The reaction mixture was stirred for 20 mm thenmethyl 6-(bromomethyl) pyridine-3-carboxylate (296mg, 1 .29mmol) was added. The stirring was continued at 70C under N2(g) for lh. The reaction was cooled to rt and poured onto water (l5OmL) and brine (5OmL) and the aqueous extracted with EtOAc (3 x lOOmL). Combined organics were dried over Na2SO4, filtered and concentratedin vacuo. The residue was purified by flash column chromatography withCH2CI2/EtOAc (1:0-0:1) then EtOAc/MeOH (1:0-4:1) to give (4) (191mg, 55%).1H NMR (500 MHz, Chloroform-d), OH ppm: 9.07 (d, J=1.9 Hz, 1H), 8.12 (dd, J=8.2,2.1 Hz, 1H), 8.06 (dd, J=4.7, 1.4 Hz, 1H), 8.01 (dd, J=2.6, 1.6 Hz, 1H), 7.88 (d,J=2.7 Hz, 1H), 7.84 (d, J=1.4 Hz, 1H), 7.54 (d, J=8.2 Hz, 1H), 7.27 (dd, J=8.2, 1.4Hz, 1H), 7.17 (dd, J=8.2, 4.7 Hz, 1H), 5.46 (5, 2H), 3.86 (5, 3H), 3.76 (5, 3H).LCMS (ES): Found 352.0 [M+H]. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
24% | NaH (60%, 73mg, 1.82mmol) was added to a solution of (3) (300mg, 1.73mmol) in DMF (llmL) at 5C under N2(g). The reaction mixture was stirred for 20mm then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (556mg, 2.25mmol) in DMF (4mL) was added. The stirring was continued at 70C under N2(g) for lh. The reaction wascooled to rt and poured onto water (l5OmL) and brine (25mL) and the aqueous extracted with EtOAc (150+lOOmL). Combined organic were dried over Na2SO4, filtered and concentrated. The residue was purified by flash column chromatography with CH2CI2/EtOAc (1:0-0:1) then EtOAc/MeOH (1:0-4:1) to yield (4) (141mg, 24%) as a brown oil.1H NMR (500 MHz, Chloroform-d), OH ppm: 8.85 (dd, J=4.6, 1.3 Hz, 1H), 8.59 (d, J=1.4 Hz, 1H), 8.23 (dd, J=2.6, 1.5 Hz, 1H), 8.18 (d, J=2.6 Hz, 1H), 7.61-7.71 (m, 2H), 7.50 (dd, J=9.1, 1.3 Hz, 1H), 7.32-7.42 (m, 2H), 5.64 (5, 2H), 3.86 (5, 3H).LCMS (ES): Found 339.9 [M+H]. | |
24% | NaH (60%, 73mg, 1.82mmol) was added to a solution of (3) (300mg, 1 .73mmol) in DMF (1 1 mL) at 5C under N2(g). The reaction mixture was stirred for 20min then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (556mg, 2.25mmol) in DMF (4ml_) was added. The stirring was continued at 70C under N2(g) for 1 h. The reaction was cooled to rt and poured onto water (150ml_) and brine (25ml_) and the aqueous extracted with EtOAc (150+100ml_). Combined organic were dried over Na2S04, filtered and concentrated. The residue was purified by flash column chromatography with CH2CI2/EtOAc (1 :0-0:1 ) then EtOAc/MeOH (1 :0- 4:1 ) to yield (4) (141 mg, 24%) as a brown oil. 1H NMR (500 MHz, Chloroform-d), δΗ ppm: 8.85 (dd, J=4.6, 1 .3 Hz, 1 H), 8.59 (d, J=1 .4 Hz, 1 H), 8.23 (dd, J=2.6, 1.5 Hz, 1 H), 8.18 (d, J=2.6 Hz, 1 H), 7.61-7.71 (m, 2H), 7.50 (dd, J=9.1 , 1 .3 Hz, 1 H), 7.32-7.42 (m, 2H), 5.64 (s, 2H), 3.86 (s, 3H). LCMS (ES): Found 339.9 [M+H]+. | |
24% | Example NN (0536) 3-Fluoro-N-hydroxy-4-[(pyrazin-2-yl)(pyridazin-3-yl)amino]m (0537) (0538) NN NaH (60%, 73mg, 1.82mmol) was added to a solution of (3) (300mg, 1.73mmol) in DMF (1 1 ml_) at 5C under N2(g). The reaction mixture was stirred for 20min then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (556mg, 2.25mmol) in DMF (4ml_) was added. The stirring was continued at 70C under N2(g) for 1 h. The reaction was cooled to rt and poured onto water (150ml_) and brine (25ml_), and the aqueous layer was extracted with EtOAc (150+100ml_). Combined organics were dried over Na2S04, filtered and concentrated. The residue was purified by flash column chromatography with CH2CI2/EtOAc (1 :0-0: 1) then EtOAc/MeOH (1 :0-4:1) to yield (4) (141 mg, 24%) as a brown oil. (0539) 1 H NMR (500 MHz, Chloroform-d), δΗ ppm: 8.85 (dd, J=4.6, 1.3 Hz, 1 H), 8.59 (d, J=1.4 Hz, 1 H), 8.23 (dd, J=2.6, 1.5 Hz, 1 H), 8.18 (d, J=2.6 Hz, 1 H), 7.61-7.71 (m, 2H), 7.50 (dd, J=9.1 , 1.3 Hz, 1 H), 7.32-7.42 (m, 2H), 5.64 (s, 2H), 3.86 (s, 3H). (0540) LCMS (ES): Found 339.9 [M+H]+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
50% | NaH (60%, 42mg, 1.O4mmol) was added to a solution of (3) (200mg, 0.99mmol) inDMF (7mL) at rt under N2(g). The reaction mixture was stirred for 30mm then methyl4-(bromomethyl)-3-fluorobenzoate (249mg, 1.O9mmol) in DMF (2mL) was added.The reaction was heated up to 70C under N2(g) for 2h, then at rt overnight. The reaction was cooled to rt and partitioned between H20 (l5OmL) and EtOAc (2 x lOOmL). Combined organics were dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by flash column chromatography with CH2CI2/EtOAc (1:0-0:1) to yield (4) (1 73mg, 50%) as a viscous oil.1H NMR (300 MHz, Chloroform-d), OH ppm: 8.63 (dd, ...&-1.4 Hz, 1H), 8.14-8.22 (m,2H), 8.01 (d, J=2.6 Hz, 1H), 7.92 (d, J=8.2 Hz, 2H), 7.39 (d, J=8.2 Hz, 2H), 6.61 (d, J=2.1 Hz, 1H), 6.54 (dd, J=5.8, 2.2 Hz, 1H), 5.46 (5, 2H), 3.85 (5, 3H), 3.75 (5, 3H). LCMS (ES): Found 350.9 [M+H]. | |
50% | NaH (60%, 42mg, 1 .04mmol) was added to a solution of (3) (200mg, 0.99mmol) in DMF (7ml_) at rt under N2(g). The reaction mixture was stirred for 30min then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (249mg, 1 .09mmol) in DMF (2ml_) was added. The reaction was heated up to 70C under N2(g) for 2h, then at rt overnight. The reaction was cooled to rt and partitioned between H20 (150ml_) and EtOAc (2 x 100ml_). Combined organics were dried over Na2S04, filtered and concentrated in vacuo. The residue was purified by flash column chromatography with CH2CI2/EtOAc (1 :0-0: 1 ) to yield (4) (173mg, 50%) as a viscous oil. 1 H NMR (300 MHz, Chloroform-d), δΗ ppm: 8.63 (dd, J=1 .4 Hz, 1 H), 8.14-8.22 (m, 2H), 8.01 (d, J=2.6 Hz, 1 H), 7.92 (d, J=8.2 Hz, 2H), 7.39 (d, J=8.2 Hz, 2H), 6.61 (d, J=2.1 Hz, 1 H), 6.54 (dd, J=5.8, 2.2 Hz, 1 H), 5.46 (s, 2H), 3.85 (s, 3H), 3.75 (s, 3H). LCMS (ES): Found 350.9 [M+H]+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82% | With potassium carbonate; In acetonitrile; at 85℃; | A mixture of <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (500 mg, 2.02 mmol, 1.0 eq), pyridin-2(lH)-one (384 mg, 4.04 mmol, 2.0 eq) and K2CO3 (836 mg, 6.06 mmol, 3.0 eq) in MeCN (5 mL) was stirred at 85 C overnight. The mixture was filtered and the filtrate was concentrated. The residue was purified via flash chromatography to afford methyl 3-fluoro-4-((2-oxopyridin-l(2H)-yl)methyl)benzoate as a yellow solid (430 mg, 82%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73% | To a solution of (3) (3.96g, 13.7mmol) in dry DMF (90ml_) was added NaH (60%, 0.65g, 12.3mmol) portion-wise at 5C under N2(g). The reaction mixture was stirred for 20mins, then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (4.4g, 17.8mmol) was slowly added. The reaction mixture was stirred for an additional 1 h. It was then partitioned between H20 (400ml_) and EtOAc (3 x 250ml_). The combined organic extracts were washed with brine (300ml_), dried over Na2S04, filtered and concentrated in vacuo. Purification by flash column chromatography with heptane/EtOAc (1 :0-3:1) yielded (4) (4.2g, 73%) as an off-white solid. 1 H NMR (400 MHz, Chloroform-cO, δΗ ppm: 8.69 (d, J=1.4 Hz, 1 H), 8.24 (m, 1 H), 8.15 (m, 2H), 7.69-7.77 (m, 2H), 7.26-7.36 (m, 2H), 7.12 (dd, J^5.3, 1.5 Hz, 1 H), 5.52 (s, 2H), 3.89 (s, 3H). LCMS (ES): Found 417.0; 419.0 [M+H]+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
84.6% | To a solution of tert-butyl 4-(N-phenylsulfamoyl)piperazine-1-carboxylate (2.440 g, 7.146 mmol) in N,N-dimethylformide (50 mL) was added NaH (60.00 %, 0.372 g, 9.290 mmol) at 0 C, and the mixture was stirred at the same temperature for 10 min. The reaction mixture was treated with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (1.942 g, 7.861 mmol), and stirred for additional 1 hr at the room room temperature. Then, saturated aqueous ammonium chloride solution was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturaed aqueous sodium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (SiO2, 40 g cartridge; ethyl acetate / hexane = 10 % to 30 %) to give tert-butyl 4-(N-(2-fluoro-4-(methoxycarbonyl)benzyl)-N-phenylsulfamoyl)piperazine-1-carboxylate as white solid (3.070 g, 84.6 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
98.5% | To a solution of tert-butyl 4-(N-(3-fluorophenyl)sulfamoyl)piperazine-1-carboxylate (1.950 g, 5.425 mmol) in N,N-dimethylformide (20 mL) was added sodium hydride (60.00 %, 0.282 g, 7.053 mmol) at the room temperature, and the mixture was stirred at the same temperature for 10 min. The reaction mixture was treated with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (1.474 g, 5.968 mmol), and stirred for additional 1 hr at the same temperature. Then, saturated aqueous sodium bicarbonate solution was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (SiO2, 40 g cartridge; ethyl acetate / hexane = 10 % to 30 %) to give tert-butyl 4-(N-(2-fluoro-4-(methoxycarbonyl)benzyl)-N-(3-fluorophenyl)sulfamoyl)piperazine-1-carboxylate as white solid (2.810 g, 98.5 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
47.1% | To a solution of tert-butyl 4-(N-(pyridin-3-yl)sulfamoyl)piperazine-1-carboxylate (1.745 g, 5.096 mmol) in N,N-dimethylformide (20 mL) was added sodium hydride (60.00 %, 0.265 g, 6.625 mmol) at the room temperature, and the mixture was stirred at the same temperature for 10 min. The reaction mixture was treated with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (1.385 g, 5.606 mmol), and stirred for additional 1 hr at the same temperature. Then, saturated aqueous sodium bicarbonate solution was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (SiO2, 40 g cartridge; ethyl acetate / hexane = 20 % to 50 %) to give tert-butyl 4-(N-(2-fluoro-4-(methoxycarbonyl)benzyl)-N-(pyridin-3-yl)sulfamoyl)piperazine-1-carboxylate as beige solid (1.220 g, 47.1 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58.9% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of <strong>[83922-51-4]N-(3-bromophenyl)methanesulfonamide</strong> (0.500 g, 1.999 mmol), sodium hydride (60.00 %, 0.096 g, 2.399 mmol) and methyl 4-(bromomethyl)-3-fluorobenzoate (0.543 g, 2.199 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl4-((N-(3-bromophenyl)methylsulfonamido)methyl)-3-fluorobenzoate as yellow solid (0.490 g, 58.9 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
72.0% | With sodium hydride; In dichloromethane; mineral oil; at 20℃; for 5h; | A solution of N-(2-(trifluoromethyl)phenyl)methanesulfonamide (0.500 g, 2.090 mmol), sodium hydride (60.00 %, 0.100 g, 2.508 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.568 g, 2.299 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous Mg504, filtered, and concentrated in vacuo. The residue was chromatographed (5i02, 12 g cartridge; ethyl acetate / hexane = 0 % to 40 %) to give methyl3-fluoro-4-((N-(2-(trifluoromethyl)phenyl)methylsulfonamido)methyl)benzoate asyellow solid (0.6 10 g, 72.0 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
74.4% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of N-(4-(trifluoromethyl)phenyl)methanesulfonamide (0.500 g, 2.090 mmol), sodium hydride (60.00 %, 0.100 g, 2.508 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.568 g, 2.299 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer waswashed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 40 %) to give methyl3-fluoro-4-((N-(4-(trifluoromethyl)phenyl)methylsulfonamido)methyl)benzoate as white solid (0.630 g, 74.4 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
64.3% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of N-(o-tolyl)methanesulfonamide (0.500 g, 2.699 mmol), sodium hydride (60.00 %, 0.130 g, 3.239 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.734g, 2.969 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 40 %) to give methyl 3-fluoro-4-((N-(o-tolyl)methylsulfonamido)methyl)benzoate as yellow solid (0.610 g, 64.3 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
69% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of N-(2-methoxyphenyl)methanesulfonamide (0.500 g, 2.485 mmol), sodium hydride (60.00 %, 0.119 g, 2.982 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.675 g, 2.733 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl3-fluoro-4-((N-(2-methoxyphenyl)methylsulfonamido)methyl)benzoate as yellow solid (0.630 g, 69.0 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58.5% | Sodium hydride (60.00 %, 0.041 g, 1.032 mmol) was added to a solution of N(3-fluorophenyl)tetrahydro-2H-thiopyran-4-sulfonamide 1,1-dioxide (0.244 g, 0.794 mmol) in N,N-dimethylformide (6 mL) at 0 C, and stirred at the same temperature for 20 mm. The reaction mixture was treated with methyl4-(bromomethyl)-3-fluorobenzoate (0.2 16 g, 0.873 mmol), and stirred at the same temperature for 20 mm. Then, aqueous iN-hydrochloric acid solution was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous Mg504, filtered, and concentrated in vacuo. The residue was chromatographed (5i02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl3-fluoro-4-(((N-(3-fluorophenyl)- 1,1 -dioxidotetrahydro-2H-thiopyran)-4- sulfonamido)methyl)benzoate as colorlessness oil (0.220 g, 58.5 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
76.3% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of N-(4-chlorophenyl)methanesulfonamide (0.500 g, 2.43 1 mmol), sodium hydride (60.00%, 0.117 g, 2.917 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.66 1 g, 2.674 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl4-((N-(4-chlorophenyl)methylsulfonamido)methyl)-3-fluorobenzoate as yellow solid (0.690 g, 76.3 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
71.6% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of N-(5-fluoropyridin-3-yl)methanesulfonamide (0.380 g, 1.998 mmol), sodium hydride (60.00 %, 0.096 g, 2.398 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.543 g, 2.198 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 40 %) to give methyl3-fluoro-4-((N-(5-fluoropyridin-3-yl)methylsulfonamido)methyl)benzoate as yellow solid (0.5 10 g, 71.6 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
67.1% | A solution of N-(2-fluorophenyl)methanesulfonamide (0.500 g, 2.643 mmol), sodium hydride (60.00 %, 0.127 g, 3.17 1 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.7 18 g, 2.907 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl3-fluoro-4-((N-(2-fluorophenyl)methylsulfonamido)methyl)benzoate as yellow solid (0.630 g, 67.1 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73.5% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of N-(4-fluorophenyl)methanesulfonamide (0.500 g, 2.643 mmol), sodium hydride (60.00 %, 0.127 g, 3.17 1 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.7 18 g, 2.907 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous Mg504, filtered, and concentrated in vacuo. The residue was chromatographed (5i02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl3-fluoro-4-((N-(4-fluorophenyl)methylsulfonamido)methyl)benzoate as yellow solid (0.690 g, 73.5 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81.7% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of N-(4-bromophenyl)methanesulfonamide (0.500 g, 1.999 mmol), sodium hydride (60.00 %, 0.096 g, 2.399 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.543 g, 2.199 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl4-((N-(4-bromophenyl)methylsulfonamido)methyl)-3-fluorobenzoate as yellow solid (0.680 g, 81.7 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70.8% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of N-(2-chlorophenyl)methanesulfonamide (0.500 g, 2.43 1 mmol), sodium hydride (60.00%, 0.117 g, 2.917 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.66 1 g, 2.674 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous Mg504, filtered, and concentrated in vacuo. The residue was chromatographed (5i02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl4-((N-(2-chlorophenyl)methylsulfonamido)methyl)-3-fluorobenzoate as yellow solid (0.640 g, 70.8 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
69.6% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of N-(p-tolyl)methanesulfonamide (0.500 g, 2.699 mmol), sodium hydride (60.00 %, 0.130 g, 3.239 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.734 g, 2.969 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl 3-fluoro-4-((N-(p-tolyl)methylsulfonamido)methyl)benzoate as white solid (0.660 g, 69.6 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75.1% | Sodium hydride (60.00 %, 0.172 g, 4.3 11 mmol) was added to a solution of tert-butyl 4-(methylsulfonamido)piperidine-1-carboxylate (1.000 g, 3.592 mmol) in N,N-dimethylformide (8 mL) at 0 C, and the mixture was stirred at the same temperature for 20 mm. The reaction mixture was treated with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.932 g, 3.772 mmol), and stirred for additional 16hr at the room temperature. Then, aqueous 0. iN-hydrochloric acid solution was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and the aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 20 %) to give tertbutyl4-(N-(2-fluoro-4-(methoxycarbonyl)benzyl)methylsulfonamido)piperidine- 1 -carboxyla te as white solid (1.200 g, 75.1 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92.4% | A solution of <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.6 10 g, 2.467 mmol) and potassium iodide (0.039 g, 0.235 mmol) in N,N-dimethylfomiide (8 mL) was stirred at the room temperature for 30 mm, and mixed with tert-butyl 4-(N-phenylsulfamoyl)piperidine-1-carboxylate (0.800 g, 2.350 mmol) and potassium carbonate (0.422 g, 3.055 mmol). The reaction mixture was stirred at the same temperature for additional 24 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 70 %) to give tert-butyl 4-(N-(2-fluoro-4-(methoxycarbonyl)benzyl)-N-phenylsulfamoyl)piperidine- 1 -carboxyl ate as white solid (1.100 g, 92.4 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | A solution of <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.454 g, 1.836 mmol) and potassium iodide (0.055 g, 0.334 mmol) in N,N-dimethylfomiide (30 mL) was stirred at the room temperature for 30 mm, and mixed with tert-butyl 4-(4-(ethylsulfonamido)benzyl)piperazine- 1 -carboxylate (0.640 g, 1.669 mmol) and potassium carbonate (0.346 g, 2.503 mmol). The reaction mixture was stirred at 50 C for additional 12 hr, and cooled down to the room temperature to terminate the reaction. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give tert-butyl 4-(4-(N-(2-fluoro-4-(methoxycarbonyl)benzyl)ethylsulfonamido)benzyl)piperazine- 1-c arboxylate as yellow solid (0.780 g, 85.0 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | A solution of <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.454 g, 1.836 mmol) and potassium iodide (0.055 g, 0.334 mmol) in N,N-dimethylfomiide (30 mL) was stirred at the room temperature for 30 mm, and mixed with tert-butyl 4-(3-(ethylsulfonamido)benzyl)piperazine- 1 -carboxylate (0.640 g, 1.669 mmol) and potassium carbonate (0.346 g, 2.503 mmol). The reaction mixture was stirred at 50 Cfor additional 12 hr, and cooled down to the room temperature to terminate the reaction. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give tert-butyl 4-(3-(N-(2-fluoro-4-(methoxycarbonyl)benzyl)ethylsulfonamido)benzyl)piperazine- 1-c arboxylate as yellow solid (0.780 g, 85.0 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
86.3% | A solution of <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.53 1 g, 2.148 mmol) and potassium iodide (0.068 g, 0.409 mmol) in N,N-dimethylfomiide (8 mL) was stirred at the room temperature for 20 mm, and mixed with N(3-(( 1,1 -dioxidothiomorpholino)methyl)phenyl)ethanesulfonamide (0.680 g, 2.046 mmol) and potassium carbonate (0.368 g, 2.659 mmol). The reaction mixture was stilTed at the same temperature for additional 8 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 40 g cartridge; ethyl acetate / hexane = 0 % to 70 %) to give methyl4-((N-(3-(( 1,1 -dioxidothiomorpholino)methyl)phenyl)ethylsulfonamido)methyl)-3-fluo robenzoate as white solid (0.880 g, 86.3 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75.6% | A solution of <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.605 g, 2.448 mmol) and potassium iodide (0.074 g, 0.445 mmol) in N,N-dimethylfomiide (10 mL) was stirred at the room temperature for 30 mm, and mixed with tert-butyl 4-(3-(ethylsulfonamido)phenyl)piperidine- 1 -carboxylate (0.820 g, 2.225 mmol) and potassium carbonate (0.46 1 g, 3.338 mmol). The reaction mixture was stirred at 50 C for additional 12 hr and cooled down to the room temperature to terminate the reaction. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give tert-butyl 4-(3-(N-(2-fluoro-4-(methoxycarbonyl)benzyl)ethylsulfonamido)phenyl)piperidine- 1-c arboxylate as yellow solid (0.900 g, 75.6 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87.1% | With potassium carbonate; potassium iodide; In N,N-dimethyl-formamide; at 20℃; for 16h; | A mixture of tert-butyl4-(N-(3-chloro-4-fluorophenyl) sulfamoyl)piperidine- 1 -carboxylate (1.500 g, 3.818 mmol), <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (1.132 g, 4.582 mmol), potassium carbonate (0.792 g, 5.727 mmol) and potassium iodide (0.95 1 g, 5.727 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 16 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 40 g cartridge; ethyl acetate / hexane = 20 % to 50 %) to give tertbutyl 4-(N-(3-chloro-4-fluorophenyl)-N-(2-fluoro-4-(methoxycarbonyl)benzyl)sulfamoyl)pi peridine- 1 -carboxylate as white solid (1.860 g, 87.1 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
47.7% | With sodium hydride; In N,N-dimethyl-formamide; at 20℃; for 5h; | A solution of <strong>[1197-22-4]N-phenylmethanesulfonamide</strong> (0.800 g, 4.673 mmol), sodium hydride (60.00 %, 0.224 g, 5.607 mmol) and methyl 4-(bromomethyl)-3-fluorobenzoate (1.270 g, 5.140 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous Mg504, filtered, and concentrated in vacuo. The residue was chromatographed (5i02, 12 g cartridge; ethyl acetate / hexane = 0 % to 50 %) togive methyl 3-fluoro-4-((N-phenylmethylsulfonamido)methyl)benzoate as yellow solid(0.752 g, 47.7 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
77.7% | A solution of <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.2 16 g, 0.873 mmol) and potassium iodide (0.066 g, 0.397 mmol) in N,N-dimethylfomiide (20 mL) was stirred at the room temperature for 30 mm, and mixed with N-(i-methyl-i H-indazol-4-yl)ethanesulfonamide (0.190 g, 0.794 mmol) and potassium carbonate (0.165 g, 1.191 mmol). The reaction mixture was stirred at 50 C for additional 12 hr and cooled down to the room temperature to terminate the reaction. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 40 %) to give methyl3-fluoro-4-((N-( i-methyl-i H-indazol-4-yl)ethylsulfonamido)methyl)benzoate as yellow solid (0.250 g, 77.7 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70.8% | A solution of <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.227 g, 0.9 19 mmol) and potassium iodide (0.069 g, 0.4 18 mmol) in N,N-dimethylfomiide (10 mL) was stirred at the room temperature for 30 mm, and mixed with N-(i-methyl-i H-indazol-7-yl)ethanesulfonamide (0.200 g, 0.836 mmol) and potassium carbonate (0.173 g, 1.254 mmol). The reaction mixture was stirred at 50 C for additional 12 hr and cooled down to the room temperature to terminate the reaction. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 40 %) to give methyl3-fluoro-4-((N-( i-methyl-i H-indazol-7-yl)ethylsulfonamido)methyl)benzoate asyellow oil (0.240 g, 70.8 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81.8% | With potassium carbonate; potassium iodide; In N,N-dimethyl-formamide; at 20 - 50℃; for 12.5h; | A solution of 3-chloro-N-phenylpropane-1-sulfonamide (2.000 g, 8.558 mmol), potassium carbonate (1.774 g, 12.836 mmol), <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (2.326 g, 9.413 mmol) and potassium iodide (0.7 10 g, 4.279 mmol) in N,N-dimethylformide (5 mL) was stirred at the room temperature for 30 mm and for additional 12 hr at 50 C, then, cooled down to the room temperature to terminate the reaction. Then, water was added to the reaction mixture, followed by extraction with ammonium chloride. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 24 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl 4-(((3-chloro-N-phenylpropyl)sulfonamido)methyl)-3-fluorobenzoate as yellow oil (2.800 g, 81.8 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
61% | A solution of 3-chloro-N-phenylpropane-i-sulfonamide (2.000 g, 8.558 mmol) and potassium carbonate (1.774 g, 12.836 mmol) in N,N-dimethylformide (100 mL) was stilTed at the room temperature for 30 mm, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (2.067 g, 8.985 mmol) and potassium iodide (0.710 g, 4.279 mmol). The reaction mixture was stirred at the same temperature for additional 12 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous Mg504, filtered, and concentrated in vacuo. The residue was chromatographed (5i02, 24 g cartridge; ethyl acetate / hexane = 0 % to 50 %) to give methyl 6-(((3-chloro-N-phenylpropyl)sulfonamido)methyl)nicotinate as yellow solid (2.000 g, 61.0 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70.8% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of N-(3-(trifluoromethyl)phenyl)methanesulfonamide (0.500 g, 2.090 mmol), sodium hydride (60.00 %, 0.100 g, 2.508 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.568 g, 2.299 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl3-fluoro-4-((N-(3-(trifluoromethyl)phenyl)methylsulfonamido)methyl)benzoate as yellow solid (0.600 g, 70.8 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
66.4% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h; | A solution of N-(m-tolyl)methanesulfonamide (0.500 g, 2.699 mmol), sodium hydride (60.00 %, 0.130 g, 3.239 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.734 g, 2.969 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous MgSO4, filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl3-fluoro-4-((N-(m-tolyl)methylsulfonamido)methyl)benzoate as yellow solid (0.630 g,66.4 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75.3% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 5h;Microwave irradiation; | A solution of N-(3-methoxyphenyl)methanesulfonamide (0.700 g, 3.252 mmol), sodium hydride (60.00 %, 0.156 g, 3.902 mmol) and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.884 g, 3.577 mmol) in N,N-dimethylformide (10 mL) was stirred at the room temperature for 5 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated ammonium chloride solution, dried with anhydrous Mg504, filtered, and concentrated in vacuo. The residue was chromatographed (5i02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl3-fluoro-4-((N-(3-methoxyphenyl)methylsulfonamido)methyl)benzoate as yellow solid (0.900 g, 75.3 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
44.4% | With potassium carbonate; In acetonitrile; at 20℃; for 12h; | [3406] -A solution of <strong>[21397-08-0]2-chloro-3-fluoroaniline</strong> ( 1.000 g, 6.870 mmol), methyl 4-(bromomethyl)-3-fluorobenzoate (6.1 10 g, 24.732 mmol) and potassium carbonate ( 1.867 g, 7.557 mmol) in acetonitrile ( 10 mL) was stirred at the room temperature for 12 hr, and concentrated under the reduced pressure to remove the solvent. The residue was chromatographed (Si02, 40 g cartridge; ethyl acetate / hexane = 0 % to 10 ) to give methyl 4-(((3-chloro-2-fluorophenyl)amino)methyl)-3-fluorobenzoate as pale yellow oil (0.950 g, 44.4 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
39.5% | With potassium carbonate; In acetonitrile; at 20℃; for 15h; | [3525] A solution of <strong>[4519-40-8]2,3-difluoroaniline</strong> ( 1.000 g, 7.745 mmol), methyl 4-(bromomethyl)-3-fluorobenzoate (2.105 g, 8.520 mmol) and potassium carbonate (2.141 g, 15.491 mmol) in acetonitrile ( 10 mL) was stirred at the room temperature for 15 hr, filtered to remove solids, and concentrated under the reduced pressure to remove the solvents. The residue was chromatographed (Si02, 40 g cartridge; ethyl acetate / hexane = 0 percent to 10 ) to give methyl 4-(((2,3-difluOrophenyl)amino)methyl)-3-fluorobenzoate as pale brown oil (0.904 g, 39.5 percent). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58.9% | With potassium carbonate; In acetonitrile; at 20℃; for 15h; | A solution of <strong>[656-64-4]3-bromo-4-fluoroaniline</strong> ( 1.000 g, 5.263 mmol), methyl 4-(bi momethyl)-3-fluoi benzoate ( 1.430 g, 5.789 mmol) and potassium carbonate ( 1.455 g, 10.525 mmol) in acetonitrile ( 10 mL) was stirred at the room temperature for 15 hr, filtered to remove solids, and concentrated under the reduced pressure to remove the solvents. The residue was chromatographed (Si02, 40 g cartridge; ethyl acetate / hexane = 0 % to 10 %) to give methyl 4-(((3-bromo-4-fluorophenyl)amino)methyl)-3-fluorobenzoate as palw brown oil ( 1.104 g, 58.9 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
47.9% | With potassium carbonate; In acetonitrile; at 20℃; for 15h; | [3559] A solution of 3-chloro-4-methylaniline ( 1.000 g, 7.062 mmol), methyl 4-(bromomethyl)-3-fluorobenzoate ( 1.919 g, 7.768 mmol) and potassium carbonate ( 1.952 g, 14.124 mmol) in acetonitrile ( 10 mL) was stirred at the room temperature for 15 hr, filtered to remove solids, and concentrated under the reduced pressure to remove the solvents. The residue was chromatographed (Si02, 40 g cartridge; ethyl acetate / hexane = 0 % to 10 %) to give methyl 4-(((3-chloro-4-methylphenyl)amino)methyl)-3-fluorobenzoate as pale yellow oil ( 1 .041 g, 47.9 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
56.4% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 18.0h; | [3695] A solution of 1 -methyl- l H-indazol-7-amine ( 1.472 g, 10.000 mmol), methyl 4-(bi momethyl)-3-fluorobenzoate (2.471 g, 10.000 mmol) and N,N-diisopropylethylamine (3.484 mL, 20.000 mmol) in acetonitrile (40 mL) was stirred at the room temperature for 18 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried (anhydrous MgS0 ), filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 40 g cartridge; ethyl acetate / hexane = 0 % to 30 ) to give methyl 3-fluoro-4-((( l -methyl- l H-indazol-7-yl)amino)methyl)benzoate as white solid ( 1.768 g, 56.4 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81.7% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 18h; | [3723] A solution of 1 -methyl- l H-indazol-4-amine (0.442 g, 3.000 mmol), methyl 4-(bromomethyl)-3-fluorobenzoate (0.741 g, 3.000 mmol) and N,N-diisopropylethylamine ( 1.045 mL, 6.001 mmol) in acetonitrile ( 12 mL) was stirred at the room temperature for 18 hr, and then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried (anhydrous MgS0 ), filtered, and concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methy i 3-fluoro-4-((( l-methyl- l H-indazol-4-yl)amino)methyl)benzoate as pale brown oil (0.768 g, 81.7 %) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87.0% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 18h; | 3-Fluoroaniline (1.000 g, 8.999 mmol), <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (2.446 g, 9.899 mmol)synthesized in step 1, and N,N-diisopropylethylamine (3.102 mL, 17.999 mmol) were dissolved in acetonitrile (50 mL) at room temperature, and the solution was stirred at the same temperature for 18 hours. Water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride solution, dried with magnesium sulfate anhydrous, filtered, and then concentrated under reduced pressure. The concentrate was purified by column chromatography (SiO2, 24 g cartridge; ethyl acetate/hexane = from 0% to 80%) and concentrated to give the title compound (2.170 g, 87.0%) as colorless oil. |
81.8% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 18h; | [3787] A solution of 3-fluoroaniline (0.500 g, 4.500 mmol), <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> ( 1.1 12 g, 4.500 mmol) and Ν,Ν-diisopropylethylamine ( 1.567 mL, 8.999 mmol) in acetonitrile ( 10 mL) was stirred at the room temperature for 18 hr, filtered through a plastic frit to remove solids, and concentrated under the reduced pressure to remove the solvents. The residue was chromatographed (Si02, 12 g cartridge; methanol / dichloromethane = 0 % to 5 %) to give methyl 3-fluoro-4-(((3-fluorophenyl)amino)methyl)benzoate as pale brown oil ( 1 .021 g, 81.8 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
69.4% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 18h; | [3801 ] A solution of m-toluidine (0.500 g, 4.666 mmol), <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> ( 1.153 g, 4.666 mmol) and N,N-diisopropylethylamine ( 1.625 mL, 9.332 mmol) in acetonitrile ( 10 n L) was stirred at the room temperature for 18 nr. filtered through a plastic frit to remove solids, and concentrated under the reduced pressure. The residue was chromatographed (Si02, 12 g cartridge; methanol / dichloromethane = 0 % to 5 %) to give methyl 3-fluoro-4-((m-tolylamino)methyl)benzoate as pale brown oil (0.885 g, 69.4 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85.1% | [3863] A solution of N-(2,3-dihydl-lH-inden-5-yl)thiomo holine-4-carboxamide 1,1-dioxide (0.294 g, 1.000 mmol) and sodium hydride (60.00 %, 0.044 g, 1.100 mmol) in tetrahydrofuran (5 mL) was stirred at the room temperature for 30 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.259 g, 1.050 mmol). The reaction mixture was stirred at the same temperature for additional 18 hr, concentrated under the reduced pressure. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 ) to give methyl 4-(( -(2,3-dihydro-lH-inden-5-yl)-l,l-dioxidothiomoφholine-4-calboxamido)methyl) -3-fluorobenzoate as white solid (0.392 g, 85.1 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93.6% | [3880] A solution of N- (2,2-dimethyl-2,3-dihydrobenzofuran-7-yl)thiomorpholine-4-caiboxamide 1 , 1 -dioxide (0.324 g, 1.000 mmol) and sodium hydride (60.00 %, 0.044 g, 1.100 mmol) in tetrahy- drofuran (5 mL) was stirred at the room temperature for 30 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.259 g, 1 .050 mmol). The reaction mixture was stirred at the same temperature for additional 18 hr, concentrated under the reduced pressure. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl 4-(( -(2,2-dimethyl-2,3-dihydrobenzofuran-7-yl)- l , l-dioxidothiomoφholine-4-carbox amido)methyl)-3-fluorobenzoate as colorless oil (0.459 g, 93.6 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85.7% | [3897] A solution of N-( l-methyl-l H-ndol-5-yl)thiomoφholne-4-carboxamide 1 , 1-dioxide (0.307 g, 1.000 mmol) and sodium hydride (60.00 %, 0.044 g, 1.100 mmol) in tetrahy- drofuran (5 mL) was stirred at the room temperature for 30 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.259 g, 1.050 mmol). The reaction mixture was stirred at the same temperature for additional 18 hr, concentrated under the reduced pressure. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl 3-fluoro-4-((N-( l -methyl- l H-indol-5-yl)- l , l-dioxidothiomorpholine-4-carboxamido)m ethyl)benzoate as white solid (0.406 g, 85.7 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
62.1% | [3927] A solution of N-(3-fluorophenyl)thiomorpholine-4-carboxamide 1 , 1 -dioxide (0.300 g, 1. 102 mmol) and sodium hydride (60.00 %. 0.048 g, 1 .21 2 mmol) in N,N-dimethylformamide (5 mL) was stirred at 0 C for 2 hr, and mixed with methyl 4-(biOmomethyl)-3-fluorobenzoate (0.299 g, 1.2 12 mmol). The reaction mixture was stirred at the room temperature for additional 17 hr. quenched at the room temperature by the addition of water (2 mL, 10 min stirring). Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 4 g cartridge; ethyl acetate / hexane = 0 % to 40 ) to give methyl 3-fluoro-4-(( N-(3-fluorophenyl)- l , l-dioxidothiomoipholine-4-carboxamido)methyl)be nzoate as white solid (0.300 g, 62. 1 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87.5% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 18h; | [3974] A solution of 1 -ethyl- l H-indazol-6-amine (0.322 g, 2.000 mmol), <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.494 g, 2.000 mmol) and N,N-diisopropylethylamine (0.697 mL, 4.000 mmol) in acetonitrile (8 mL) was stirred at the room temperature for 18 hr, and concentrated under the reduced pressure to remove the solvent. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %). to give jnethyl 4-((( l -ethyl- l H-indazol-6-yl)amino)methyl)-3-fluorobenzoate as green oil (0.573 g, 87.5 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
86.8% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 18h; | [3991 ] A solution of l -isopropyl- l H-indazol-6-amine (0.35 1 g. 2.000 mmol). <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.494 g, 2.000 mmol) and N.N-diisopropylethylamine (0.697 mL. 4.000 mmol) in acetonitnle (8 mL) was stin ed at the room temperature for 18 hr, concentrated under the reduced pressure. Then, water was added to the reaction mixture, followed by extraction with dichloroniethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl 3-fluoro-4-((( l -isopropyl- lH-indazol-6-yl)amino)methyl)benzoate as green oil (0.592 g, 86.8 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
95.2% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 18h; | [4008] A solution of 2-isopropylbenzo[d]thiazol-6-amine (0.385 g, 2.000 mmol), <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.494 g, 2.000 mmol) and N,N-diisopropylethylamine (0.697 mL, 4.000 mmol) in acetonitrile (8 mL) was stirred at the room temperature for 18 hr, and concentrated under the reduced pressure to remove the solvent. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasie mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl 3-fluoro-4-(((2-isopropylbenzo[d]thiazol-6-yl)amino)methyl)benzoate as orange oil (0.683 g, 95.2 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87.6% | [4122] To a stirred solution of N-(4-fluorophenyl)moφhol ne-4-caIboxamide (0.200 g, 0.892 mmol) in N,N-dimethylformamide (5 mL) was added at 0 C sodium hydride (60.00 %, 0.036 g, 0.892 mmol). The reaction mixture was stirred at the same temperature for I hr, treated at the room temperature with methyl 4-(bromomethyl)-3-fluoi benzoate (0.220 g, 0.892 mmol), and stirred for additional 2 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (SiO:, 4 g cartridge; methanol / dichloromethane = 0 % to 5 %) to give methyl 3-fluoro-4-((N-(4-fluoiOphenyl )moi holine-4-carboxamido)methyl)benzoate as yel low oil (0.305 g, 87.6 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
94.2% | To a stirred solution of N-(3-fuorophenyl)mo holine-4-carbo amide (0.200 g, 0.892 mmol) in N,N-dimethylformamide (5 mL) was added at 0 C sodium hydride (60.00 %, 0.036 g, 0.892 mmol). The reaction mixture was stirred at the same temperature for 1 hr, added at the room temperature with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.220 g, 0.892 mmol), and stirred for additional 2 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 4 g cartridge; methanol / dichloromethane = 0 % to 5 %) to give methyl 3-fluoro-4-((N-(3-Πuorophenyl)mo lloline-4-carboxamido)methyl)benzoate as yellow oil (0.328 g, 94.2 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
77.2% | [4216] To a stirred solution of N-(4-chlorophenyl)morpholine-4-carboxamide (0.200 g. 0.831 mmol) in N,N-dimethylformamide (5 mL) was added at 0 C sodium hydride (60.00 %, 0.033 g, 0.83 1 mmol). The reaction mixture was stirred at the same temperature for 1 hr, added at the room temperature with methyl 4-(bromomethyl )-3-fluorobenzoate (0.205 g. 0.8 1 mmol ). and stirred for additional 2 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 4 g cartridge; methanol / dichloromethane = 0 % to 5 % ) to give methyl 4-((N-(4-chloiOphenyl)morpholine-4-carboxamido)methyl)-3-fluoi benzoate as yellow oil (0.261 g, 77.2 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82.2% | [4263] To a stirred solution of N-(3-chlorophenyl)n ^holine-4-carboxamide (0.200 g, 0.831 mmol) in Ν,Ν-dimethylformamide (5 mL) was added at 0 C sodium hydride (60.00 , 0.033 g, 0.831 mmol). The reaction mixture was stirred at the same temperature for I hr, treated at the room temperature with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.205 g, 0.831 mmol), and stirred for additional 2 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 4 g cartridge; methanol / dichloromethane = 0 % to 5 %) to give methyl 4-(( -(3-chlorophenyl)mo holine-4-carboxamido)methyl)-3-fluorobenzoate as yellow oil (0.278 g, 82.2 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58% | [4302] To a stirred solution of N-(2-fluoro-4-methylphenyl)moφholine-4-carbo amide (0.125 g, 0.525 mmol) in N,N-dimethylformamide (5 niL) was added at 0 C sodium hydride (60.00 %, 0.021 g, 0.525 mmol). The reaction mixture was stirred at the same temperature for 1 hr, added at the room temperature with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.130 g, 0.525 mmol), and stirred for additional 2 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 4 g cartridge: methanol / dichloromethane = 0 % to 5 %) to give methyl 3-fuol-4-((N-(2-fluoro-4-methylphenyl)mo holine-4-cal'boxamido methyl)benzoate as yellow oil (0.123 g, 58.0 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75.5% | To a stirred solution of N-(2,4-difluorophenyl )morpholine-4-carboxamide (0. 150 g, 0.619 mmol) in N,N-dimethylformamide (5 mL) was added at 0 C sodium hydride (60.00 %, 0.025 g, 0.619 mmol). The reaction mixture was stirred at the same temperature for 1 hr, added at the room temperature with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0. 153 g, 0.619 mmol), and stirred for additional 2 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si0 . 4 g cartridge; methanol / dichloromethane = 0 % to 5 % ) to give methyl 4-((N-(2.4-difluoiOphenyl )morpholine-4-carboxamido)methyr)-3-tluoiObenzoate as yellow oil (0.191 g, 75.5 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99.1% | [4448] A solution of 4-ethyl-N-(3-fluorophenyl)piperazine- l -carboxamide (0.334 g, 1.330 mmol) and sodium hydride (60.00 %, 0.059 g, 1.463 mmol) in tetrahydrofuran (6 mL) was stirred at the room temperature for 30 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.361 g, 1.463 mmol). The reaction mixture was stirred at the same temperature for additional 18 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane.. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The title compound was used without further purification (methyl 4-((4-ethyl-N-(3-fluorophenyl)piperazine- l-carboxamido)methyl)-3-fluorobenzoate, 0.550 g, 99.1 %, pale yellow oil). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99.1% | [4493] A solution of 4-ethyl-N-(4-fluoiOphenyl)piperazine- l-carboxamide (0.334 g, 1.330 mmol) and sodium hydride (60.00 %, 0.059 g. 1.463 mmol) in tetrahydrofuran (6 niL) was stirred at the room temperature for 30 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.361 g, 1.463 mmol). The reaction mixture was stirred at the same temperature for additional 18 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The title compound was used without further purification (methyl 4-((4-ethyl-N-(4-fluorophenyl)piperazine- l-carboxamido)methyl)-3-fluorobenzoate, 0.550 g, 99.1 %, pale yellow oil). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99.8% | [4538] A solution of 4-ethyl-N-(3-methoxyphenyl)piperazine- l-carboxamide (0.350 g, 1.330 mmol) and sodium hydride (60.00 %, 0.059 g, 1.463 mmol) in tetrahydrofuran (6 mL) was stirred at the room temperature for 30 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.361 g, 1.463 mmol). The reaction mixture was stirred at the same temperature for additional 18 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The title compound was used without further purification (methyl 4-((4-ethyl-N-(3-methoxyphenyl)piperazine- l -carboxamido)methyl)-3-fluorobenzoate, 0.570 g, 99.8 %, pale yellow oil). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99.8% | [4583] A solution of 4-ethyl-N-(4-methoxyphenyl)piperazine- l -carboxainide (0.350 g, 1.330 mmol) and sodium hydride (60.00 %, 0.059 g, 1.463 mmol) in tetrahydrofuran (6 mL) was stirred at the room temperature for 30 min, and mixed with methyl 4-(bromomethyl)-3-fluoi benzoate (0.361 g, 1.463 mmol). The reaction mixture was stirred at the same temperature for additional 18 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane'. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The title compound was used without further purification (methyl 4-((4-ethyl-N-(4-methoxyphenyl)piperazine- l -carboxamido)methyl)-3-fluorobenzoate, 0.570 g, 99.8 %, pale yellow oil). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99.2% | [4767] A solution of tert-butyl 4-(4-( 1 , 1 -dioxidothiomoipholine-4-carboxamido)benzyl)piperazine- 1 -carboxylate ( 1.990 g, 4.397 mmol) and sodium hydride (60.00 %, 0.193 g, 4.837 mmol) in N.N-dimethylformamide (20 mL) was stirred at 0 C for 30 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> ( 1.195 g, 4.837 mmol). The reaction mixture was stirred at the room temperature for additional 17 hr, quenched at the room temperature by the addition of water (50 mL, 10 min stirring). Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgSOj, filtered, and concentrated in vacuo. The concentrate was purified and con- centrated by column chromatography (Si02, 24 g cartridge; methanol / dichloromethane = 0 % to 5 %) to give tert-butyl 4-(4-(N-(2-fluoro-4-(methoxycarbonyl)benzyl)- 1 , 1 -dioxidothiomorpholine-4-carboxa mido)benzyl)piperazine-l-carboxylate as yellow solid (2.700 g, 99.2 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
76.8% | [4820] A solution of N- (4-((4-ethylpiperazin- l -yl)methyl)phenyl)thiomorpholine-4-carboxamide 1 , 1 -dioxide (0.360 g, 0.946 mmol) and sodium hydride (60.00 %, 0.042 g, 1.041 mmol) in N,N-dimethylformamide ( 10 mL) was stirred at 0 C for 10 min, and mixed with methyl 4-(bromomethyl)-3-fluoi benzoate (0.257 g, 1.041 mmol). The reaction mixture was stiiTed at the room temperature for additional 2 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgSOj, filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 12 g cartridge; methanol / dichloromethane = 0 % to 5 '%) to give methyl 4-((N-(4-((4-ethylpiperazin- 1 -yl)methyl)phenyl)- 1 , 1 -dioxidothiornorpholine-4-carboxa mido)methyl)-3-fluorobenzoate as pale yellow solid (0.397 g, 76.8 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
89.5% | [4837] A solution of N- (4-((4-benzylpiperazin- l -yl)methyl)phenyl)thiomorpholine-4-carboxamide 1 , 1 -dioxide (0.618 g, 1.396-mmol) and sodium hydride (60.00 %, 0.061 g, 1.536 mmol) in N.N-dimethylformamide (10 mL) was stirred at 0 C for 10 min, and mixed with methyl 4-(bromomethyl)-3-fluoi benzoate (0.379 g, 1.536 mmol). The reaction mixture was stirred at the room temperature for additional 2 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgSO_i, filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 12 g cartridge; methanol / dichloromethane = 0 % to 5 % ) to give methyl 4-((N-(4-((4-benzylpiperazin- 1 -yl)rhethyl)phenyl)- 1 , 1 -dioxidothiomorpholine-4-carbo xamido)methyl)-3-fluorobenzoate as white solid (0.761 g, 89.5 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1.81 g | [4970] A solution of tert-butyl 4-(4-aminophenoxy)piperidine- 1 -carboxylate ( 1.420 g, 4.857 mmol) and sodium hydride (60.00 %, 0.204 g, 5. 100 mmol) in N.N-dimethylformamide (20 mL) was stirred at 0 C for 30 min. and mixed with methyl 4-( bromomethyl)-3-fluorobenzoate ( 1 .260 g, 5. 100 mmol). The reaction mixture was stirred at the room temperature for additional 17 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgSO^, filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02. 24 g cartridge; ethyl acetate / hexane = 0 % to 40 %) to give tert-butyl 4-(4-((2-fluoro-4-(methoxycarbony I )benzy I )amino )phenoxy )piperidine- 1 -carboxylate as yellow oil ( 1.810 g, 8 1.3 ). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73.6% | [4993] A solution of tert-butyl (2S,6R)-4-(4-(l ,l-dioxidothiomorpholine-4-carboxamido)benzyl)-2,6-dimethylpiperaz ine-l-carboxylate (2.000 g.4.161 mmol) and sodium hydride (60.00 %, 0.183 g, 4.577 mmol) in N,N-dimethylfonnamide (100 mL) was stirred at 0 C for 30 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (1.131 g, 4.577 mmol). The reaction mixture was stirred at the room temperature for additional 3 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgS04, filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 40 g cartridge; methanol / dichloromethane = 0 % to 10 %) to give tert-butyl (3R,5S)-4-(4-(N-(2-fluoro-4-(methoxycarbonyl)benzyl)- 1 , 1 -dioxidothiomoφholine-4- carboxamido)benzyl)-3,5-dimethylpiperazine-l -carboxylate as yellow solid ( 1.980 g, 73.6 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99.9% | [5025] A solution of tert-butyl (2S,6R)-4-(4-( l , l -dio idothiomoφholine-4-carboxamido)benzyl)-2>6-dimethylpiperaz ine- 1 -carboxylate ( 1.450 g, 3.017 mmol) and sodium hydride (60.00 %, 0.133 g, 3.3 19 mmol) in N,N-dimethylfomiamide (30 mL) was stirred at 0 C for 10 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.820 g, 3.319 mmol). The reaction mixture was stirred at the same temperature for additional 1 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgSOj, filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 12 g cartridge; ethyl acetate / hexane = 10 % to 60 %) to give tert-butyl (2S,6R)-4-(4-(N-(2-fluoro-4-(methoxyca bonyl)benzy])- l , l-dioxidothiomo holine-4- carboxamido)benzyl)-2,6-dimethylpiperazine- l -carboxylate as yellow solid ( 1.950 g, 99.9 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82.3% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 18h; | [5075] A solution of ((3r,5r,7r)-adamantan- l -yl)methanamine (1.500 g, 9.076 mmol), <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (2.466 g, 9.983 mmol) and N,N-diisopropylethylamine (3.162 mL, 18.151 mmol) in acetonitrile (30 mL) prepared at the room temperature was stirred at the same temperature for 18 hr. Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgS04, filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (SiCh, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give methyl 4-(((((3r,5r,7r)-adamantan- l-yl)methyl)amino)methyl)-3-fluorobenzoate as yellow solid (2.474 g, 82.3 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58% | [5250] A solution of tert-butyl 4-((3-chlorophenyl)carbamoyl)piperazine- l-carboxylate (0.453 g, 1.333 mmol) and sodium hydride (60.00 %, 0.080 g, 1.999 mmol) in tetrahy- drofuran (6 mL) was stirred at the room temperature for 30 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.362 g, 1.466 mmol). The reaction mixture was stirred at the same temperature for additional 18 hr, and concentrated under the reduced pressure. The concentrate was purified and concentrated by column chromatography (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 50 %) to give tert-butyl 4-((3-chlorophenyl)(2-fluoro-4-(methoxycarbonyl)benzyl)carbamoyl)piperazine- l-carb oxylate as colorless oil (0.391 g, 58.0 ). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
59.5% | [5358] solution of tert-butyl 4-((3-methoxyphenyl)carbamoyl)piperazine- l-carboxylate (0.447 g, 1.333 mmol) and sodium hydride (60.00 %, 0.080 g, 1.999 mmol) in tetrahy- drofuran (6 mL) was stirred at the room temperature for 30 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.362 g, 1.466 mmol). The reaction mixture was stirred at the same temperature for additional 18 hr, and concentrated under the reduced pressure. The concentrate was purified and concentrated by column chromatography (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 50 %) to give tert-butyl 4-((2-fluoro-4-(methoxycarbonyl)benzyl)(3-methoxyphenyl)carbamoyl)piperazine- l-c arboxylate as colorless oil (0.397 g, 59.5 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With sodium hydride; In N,N-dimethyl-formamide; at 0 - 20℃; for 18h; | [748] A solution of Ν-ρηεηγ1ιηιοιηο ηοηε-4-03ΛοχΗ(1ε 1 , 1-dioxide ( 1.000 g, 3.932 mmol) and sodium hydride (60.00 %, 0.1 89 g, 4.719 mmol) in N,N-dimethylformamide (30 mL) was mixed at 0 C with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> ( 1.020 g, 4. 129 mmol). and stirred at the room temperature for 18 hr. Then, saturated aqueous sodium bicarbonate solution was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with brine, dried (anhydrous MgS04), filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (SiO . 40 g cartridge; ethyl acetate / hexane = 0 % to 50 %) to give the title compound methyl 4-(( l , l -dioxido-N-phenylthiomoipholine-4-carboxamido)methyl)-3-fluorobenzoate as white solid ( 1.240 g. 75.0 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
74.2% | [5466] A solution of tert-butyl 4-(phenylcarbamoyl )piperazine- 1 -carbox late (0.610 g. 1.998 mmol) and sodium hydride (60.00 %. 0. 120 g. 2.996 mmol ) in tetrahydrofuran (6 mL) was stirred at the room temperature for 30 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.543 g, 2. 197 mmol). The reaction mixture was stirred at the same temperature for additional 18 hr, and concentrated under the reduced pressure. The concentrate was purified and concentrated by column chromatography (Si02. 12 g cartridge; ethyl acetate / hexane = 0 % to 50 %) to give tert- butyl 4-((2-fluoro-4-(methoxycarbonyl)benzyl)(phenyl)carbamoyl)piperazine- l -carboxylate as colorless oil (0.699 g. 74.2 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
71.3% | 2163] To a stirred solution of N-(4-methoxyphenyl)thiomoi holine-4-carboxamide 1 , 1-dioxide ( 1.000 g, 3.5 17 mmol) in N,N-dimethylf rmamide (20 mL) was added at 0 C sodium hydride (60.00 %, 0.169 g, 4.220 mmol). The reaction mixture was stirred at the same temperature, treated at the room temperature with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.956 g, 3.869 mmol), and stirred for additional 1 hr. Then, aqueous lN-sodium bicarbonate solution was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried (anhydrous MgS04), filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 40 g cartridge; methanol / dichloromethane = 0 % to 5 %) to give the title compound methyl 3-fluoro-4-((N-(4-methoxyphenyl)- l , l-dioxidothiomorpholine-4-carboxamido)methyl) benzoate as bright yellow solid ( 1 . 130 g, 7 1.3 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93.1% | [3963] A solution of N-(3-chlorophenyl)thiomorpholine-4-carboxamide 1 , 1 -dioxide (0.300 g, 1.039 mmol) and sodium hydride (60.00 %, 0.046 g, 1.143 mmol) in N.N-dimethylformamide (5 mL) was stirred at 0 C for 2 hr, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.282 g, 1.143 mmol). The reaction mixture was stirred at the room temperature for additional 1 7 hr, quenched at the room temperature by the addition of water (2 mL, 10 min stirring). Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatog aphed (Si02, 4 g cartridge; ethyl acetate / hexane = 0 % to 40 %) to give methyl 4-((N-(3-chlorophenyl)- l . l -dioxidothiomorpholine-4-carboxamido)methyl )-3-fluoiObe nzoate as white solid (0.440 g, 93. 1 ). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58.5% | [2506] To a stirred solution of N-(4-bromophenyl)thiomoφholine-4-carboxamide 1 , 1-dioxide ( 1.500 g, 4.502 mmol) prepared in Step 1 in N,N-dimethylformamide ( 15 mL) was added at 0 C sodium hydride (60.00 %, 0.180 g, 4.502. mmol). The reaction mixture was stirred at the same temperature for 30 min. Methyl 4-(bromomethyl)-3-fluorobenzoate ( 1.1 12 g, 4.502 mmol) was added to the reaction mixture, and stirred at the room temperature for additional 4 hr. The precipitates were collected by filtration, washed by diethylether, and dried to give the title compound methyl 4-((N-(4-bromophenyl)- 1 , 1 -dio idothiomoφholine-4-carboxamido)methyl)-3-fuorobe nzoate as white solid (1.314 g, 58.5 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99.9% | [2185] To a stirred solution of N-(2-methoxyphenyl)thiomorpholine-4-carboxamide 1, 1 -dioxide ( 1.000 g, 3.517 mmol) in N,N-dimethylformamide ( 10 mL) was added at 0 C sodium hydride (60.00 %, 0.169 g, 4.220 mmol). The reaction mixture was stirred at the same temperature, treated at the room temperature with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.956 g, 3.869 mmol), and stirred for additional 1 hr. Then. waier was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried (anhydrous MgS04), filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 40 g cartridge; methanol / dichloromethane = 0 % to 5 %) to give the title compound methyl 3-fluoro-4-((N-(2-methoxypheny 1)- 1 , 1 -dio idothiomo holine-4-carboxamido)methyl) benzoateas white solid (1.582 g, 99.9 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
64.1% | With sodium hydride; In N,N-dimethyl-formamide; at 20℃; for 16h; | [319] A solution of N-phenylmorpholine-4-carboxamide (0.300 g. 1.455 mmol) and sodium hydride (60.00 %, 0.058 g, 1.455 mmol) in Ν,Ν-dimethylformamide ( 10 niL) was mixed at the room temperature with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.359 g. 1.455 mmol). The reaction mixture was stirred at the same temperature for 16 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with brine, dried (anhydrous MgS04), filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (SiOi. 12 g cartridge; ethyl acetate / hexane - 10 % to 30 % ) to give the title compound methyl 3-fluoiO-4-((N-phenylmotpholine-4-carboxamido)methyl )benzoate as yellow solid (0.347 g, 64. 1 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70.1% | [2207] To a stirred solution of N-(3-methoxyphenyl)thiomoi holine-4-carboxamide 1 , 1 -dioxide ( 1.000 g, 3.5 17 mmol) in N,N-dimethylformamide ( 10 mL) was added at 0 C sodium hydride (60.00 %, 0.169 g, 4.220 mmol). The reaction mixture was stirred at the same temperature, treated at the room temperature with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.956 g, 3.869 mmol), and stirred for additional 1 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried (anhydrous MgS04), filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 40 g cartridge; methanol / dichloromethane = 0 % to 5 %) to give the title compound methyl 3-fluoro-4-((N-(3-methoxyphenyl)- 1 , 1 -dio idothiomoφholine-4-carbo amido)methy 1) benzoate as white solid ( 1.1 10 g, 70.1 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
66.2% | [39381 A solution of N-(2-fluorophenyl)thiomorpholine-4-carboxamide 1 , 1 -dioxide (0.300 g, 1. 102 mmol) and sodium hydride (60.00 %, 0.048 g, 1 .212 mmol) in N.N-dimethylformamide (5 mL) was stirred at 0 C for 2 hr, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.299 g, 1 .2 12 mmol). The reaction mixture was stirred at the room temperature for additional 17 hr, quenched at the room temperature by the addition of water (2 mL, 10 min stirring ). Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove the solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The residue was chromatographed (Si02, 4 g cartridge; ethyl acetate / hexane = 0 % to 40 %) to give methyl 3-fluoro-4-((N-(2-fluorophenyl)-l , l-dioxidothiomoi holine-4-carboxamido)methyl)be nzoate as white solid (0.320 g, 66.2 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75.4% | [ 1977] To a stirred solution of N-(3-bromophenyl)-4-methylpiperazine- l-carboxamide (5.280 g, 17.707 mmol) prepared in Step 1 in N,N-dimethylformamide (50 mL) was added at 0 C sodium hydride (60.00 %, 1.062 g, 26.561 mmol). The reaction mixture was stirred at the same temperature for 30 min, treated at the room temperature with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (4.812 g, 19.478 mmol), and stirred for additional 12 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried (anhydrous MgS04), filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 50 %) to give the title compound methyl 4-((N-(3-bromophenyl)-4-methylpiperazine- l-carboxamido)methyl)-3-fluorobenzoate as Yellow oil (6.200 g, 75.4 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
89.9% | [2735] To a stirred solution of N-(4-bromophenyl)-4-methylpiperazine- l -carboxamide (2.000 g, 6.707 mmol) in N.N-dimethylformamide (30 mL) was added at 0 C sodium hydride (60.00 %, 0.402 g, 10.061 mmol). The reaction mixture was stirred at the same temperature for 30 min. Methyl 4-(bromomethyl)-3-fluorobenzoate ( 1.823 g, 7.378 mmol) was added to the reaction mixture, and stirred at the room temperature for additional 5 hr. Then, water was added to the reaction mixture, followed by extraction ' with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgS04, filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 30 %) to give the title compound methyl 4-((N-(4-bromophenyl)-4-methylpiperazine- l-carboxamido)methyl)-3-fluorobenzoate as white solid (2.800 g, 89.9 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80.4% | [2008] A solution of 3-chloroaniline (0.498 mL, 4.703 mmol) and sodium hydride (60.00 %, 0.198 g, 4.938 mmol) in N,N-dimethylformamide ( 10 mL) was stirred at 0 C for 10 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> ( 1.278 g, 5.174 mmol)'. The reaction mixture was stirred at the same temperature for additional 1 hr, and quenched at the room temperature by the addition of saturated aqueous sodium bicarbonate solution ( 10 mL, 10 min stirring). Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The concentrate was purified arid - - concentrated by column chromatography (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 20 %) to give the title compound methyl 4-(((3-chlorophenyl)amino)methyl)-3-fluorobenzoate as orange oil ( 1.1 10 g, 80.4 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58% | [2025] A solution of 4-chloroaniline hydrochloride (0.600 g, 3.658 mmol) and sodium hydride (60.00 %, 0.154 g, 3.841 mmol) in N,N-dimethylformamide ( 10 mL) was stirred at 0 C for 10 min, and mixed with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.994 g, 4.024 mmol). The reaction mixture was stirred at the same temperature for additional 1 hr, and quenched at the room temperature by the addition of saturated aqueous sodium bicarbonate solution ( 10 mL, 10 min stirring). Then, water was added to the reaction mixture, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 20 ) to give the title compound methyl 4-(((4-chlorophenyl)amino)methyl)-3-fluorobenzoate as pale yellow solid (0.623 g, 58.0 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81.8% | [2429] To a stirred solution of N-(4-ethylphenyl)thiomoφholine-4-carboxamide 1 , 1 -dioxide ( 1.000 g, 3.542 mmol) prepared in Step 1 in N,N-dimethylformide (30 mL) was added at 0 C sodium hydride (60.00 %, 0.170 g, 4.250 mmol). The reaction mixture was stirred at the same temperature. Methyl 4-(bromomethyl)benzoate (0.884 g, 3.577 mmol) was added to the reaction mixture, and stirred for additional 3 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgS04, filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02. 40 g cartridge; ethyl acetate / hexane = 0 % to 50 %) to give the title compound methyl 4-((N-(4-ethylphenyl)- 1 , 1 -dioxidothiomo holine-4-carboxamido)methyl)-3-fluoroben zoate as white solid (1.300 g, 81.8 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99.3% | [2454] To a stirred solution of N- (4-(trifluoromethoxy)phenyl)thiomoipholine-4-carboxamide 1 , 1 -dioxide ( 1.000 g, 2.956 mmol) prepared in Step 1 in N,N-dimethylformide (30 mL) was added at 0 C sodium hydride (60.00 %, 0.142 g, 3.547 mmol). The reaction mixture was stirred at the same temperature. Methyl 4-(bi momethyl)-3-fluorobenzoate (0.738 g, 2.986 mmol) was added to the reaction mixture, and stirred at the room temperature for additional 3 hr-. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgS04, filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 40 g cartridge; ethyl acetate / hexane = 0 % to 50 ) to give the title compound methyl 4-(( 1 , l-dioxido-N-(4-(trifluoromethoxy)phenyl)thiomo holine-4-carboxamido)methyl )-3-fluorobenzoate as colorless oil ( 1.480 g, 99.3 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
65.8% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 16h; | [2598] A solution of 3-(trifluoromethoxy)aniline (0.500 g, 2.823 mmol) and N.N-diisopropylethylamine (0.739 mL, 4.234 mmol) in acetonitrile ( 10 mL) was mixed at the room temperature with methyl 4-(bromomethyl)-3-fliiorobenzoate (0.704 g, 2.851 mmol). The reaction mixture was stirred at the same temperature for 16 hr, concentrated under the reduced pressure to remove the solvent, and water was added to the concentrate, followed by extraction with dichloromethane. The bi-phasic mixture was passed through a plastic frit to remove solid residues and aqueous layer, and the organic layer collected was concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 24 g cartridge; ethyl acetate / hexane = 0 % to 10 %) to give the title compound methyl 3- fluoro-4-(((3-(trifluoromethoxy)phenyl)amino)methyl)benzoate as white solid (0.638 g, 65.8 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88.1% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 18h; | [5042] A solution of 3-chloiO-4-fluoroaniline ( 0.500 g, 3.435 mmol), methyl 4-(bromoniethyl)-3-fluoiObenzoate (0.934 g. 3.779 mmol) and Ν,Ν-diisopropylethylamine ( 1 .197 mL, 6.870 mmol) in acetonitrile (5 mL) was stined at the room temperature for 1 8 hr. Then, water was added to the reaction mixture, fol lowed by extraction with dichloiomethane. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgS04. filtered, and concentrated i n vacuo. The concentrate was purified and concentrated by column chromatography (Si02. 24 g cartridge; ethyl acetate / hexane = 0 % to 30 % ) to give methyl 4-(((3-chloro-4-fluorophenyl)amino)methyl)-3-fluorobenzoate as orange solid (0.943 g, 88. 1 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With N-ethyl-N,N-diisopropylamine; In N,N-dimethyl-formamide; at 20℃; for 16h; | [2805] A solution of 1 -methyl- lH-indol-6-amine (0.300 g, 1.214 mmol) and N,N-diisopropylethylamine (0.254 mL, 1.457 mmol) in N,N-dimethylformide (3 mL) was mixed at the room temperature with <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.303 g, 1.226 mmol). The reaction mixture was stirred at the same temperature for 16 hr. Then, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with aqueous saturated sodium chloride solution, dried with anhydrous MgS04, filtered, and concentrated in vacuo. The concentrate was purified and concentrated by column chromatography (Si02, 12 g cartridge; ethyl acetate / hexane = 0 % to 50 %) to give the title compound methyl 3-fluoro-4-((( l -methyl- l H-indazol-6-yl)amino)methyl)benzoate as white solid (0.381 g, 100.0 %). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
30% | With potassium carbonate; In N,N-dimethyl-formamide; at 80℃; for 5h; | To a round bottom flask charged with compound 3-1 (120 mg, 0.5 mmol) and 6-chloro- l,2,3,4-tetrahydroquinoline (55 mg, 0.32 mmol) in DMF (3 mL) was added K2CO3 (88 mg, 0.64 mmol). The resulting mixture was allowed to stir for 5 h at 80 C. The mixture was cooled to room temperature and after addition of water (15 mL) extracted with EtOAc (3 x 15 mL). The combined organic extracts were washed with brine (20 mL), dried over sodium sulfate, and concentrated under vacuum. The crude product was purified by flash chromatography (0 - 80% EtOAc/hexanes) to afford as colorless oil (50 mg, 30%). 1H NMR (400 MHz, CDC13) delta 7.77 - 7.68 (m, 2H), 7.24 (dd, = 10.9, 4.5 Hz, 1H), 6.95 (d, = 2.5 Hz, 1H), 6.89 (dd, = 8.7, 2.5 Hz, 1H), 6.28 (d, = 8.7 Hz, 1H), 4.52 (s, 2H), 3.91 (s, 3H), 3.45 - 3.28 (m, 2H), 2.79 (t, = 6.3 Hz, 2H), 2.08 - 1.95 (m, 2H). 13C NMR (100 MHz, CDCI3) delta 165.9 (d, = 2.8 Hz), 160.5 (d, = 244.9 Hz), 143.6, 130.8 (d, = 7.0 Hz), 130.7 (d, = 14.4 Hz), 128.7, 128.0 (d, = 4.5 Hz), 126.9, 125.5 (d, = 3.3 Hz), 124.1, 120.9, 116. 5 (d, = 23.1 Hz), 111.8, 52.3, 50.1, 49. 5 (d, = 4.3 Hz), 28.0, 22.2. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81.4% | Tert-butyl 3-((3-fluorophenyl)carbamoyl)azetidine-1-carboxylate (0.550 g, 1.869 mmol) was dissolved in tetrahydrofuran (80 mL), and sodium hydride (60.00%, 0.149 g, 3.737 mmol) was added slowly to the solution while the temperature was maintained at 0C. The mixture was stirred for 20 minutes, and then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (0.508 g, 2.056 mmol) was added thereto. The reaction mixture was further stirred at 50C for 12 hours and cooled to room temperature. Then, water (20 mL) was added to the reaction mixture at 0C, followed by stirring for 5 minutes. After completion of the reaction, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride solution, dried with magnesium sulfate anhydrous, filtered, and then concentrated under reduced pressure. The concentrate was purified by column chromatography (SiO2, 80 g cartridge; ethyl acetate/hexane = from 5% to 50%) and concentrated to give the title compound (0.700 g, 81.4%) as a white solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
84.1% | Tert-butyl 4-(phenylcarbamoyl)piperidine-1-carboxylate (2.000 g, 6.571 mmol) synthesized in step 1 of Example 9 was dissolved in tetrahydrofuran (80 mL), and sodium hydride (60.00 %, 0.526 g, 13.141 mmol) was added slowly to the solution while the temperature was maintained at 0C. The mixture was stirred for 20 minutes, and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (1.948 g, 7.885 mmol) was added thereto, followed by additional stirring at 50C for 12 hours. The reaction mixture was cooled down to room temperature, and then water (20 mL) was added to the reaction mixture at 0C, followed by stirring for 5 minutes. After completion of the reaction, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride solution, dried with magnesium sulfate anhydrous, filtered, and then concentrated under reduced pressure. The concentrate was purified by column chromatography (SiO2, 80 g cartridge; ethyl acetate/hexane = from 5% to 50%) and concentrated to give the title compound (2.600 g, 84.1%) as colorless oil. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
60.5% | With calcium carbonate; In tetrahydrofuran; at 0 - 20℃; for 18h; | 2-(Benzyloxy)-N-(4-chloro-3-fluorophenyl)acetamide (1.880 g, 6.401 mmol), synthesized in step 1, and calcium carbonate (1.327 g, 9.601 mmol) were dissolved in tetrahydrofuran (50 mL) at 0C, and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (1.898 g, 7.681 mmol) was added to the solution. The mixture was stirred at room temperature for 18 hours. Water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride solution, dried with magnesium sulfate anhydrous, filtered, and then concentrated under reduced pressure. The concentrate was purified by column chromatography (SiO2, 40 g cartridge; ethyl acetate/hexane = from 0% to 50%) and concentrated to give the title compound (1.780 g, 60.5%) as yellow oil. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80.3% | With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20℃; for 18h; | N-(3-chloro-4-fluorophenyl)tetrahydro-2H-thiopyran-4-carboxamide 1,1-dioxide (1.000 g, 3.271 mmol), synthesized in step 1, and sodium hydride (60.00 %, 0.262 g, 6.541 mmol) were dissolved in N,N-dimethylformamide (50 mL) at room temperature, and <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (1.212 g, 4.906 mmol) was added to the solution. The mixture was stirred at the same temperature for 18 hours. Water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride solution, dried with magnesium sulfate anhydrous, filtered, and then concentrated under reduced pressure. The concentrate was purified by column chromatography (SiO2, 12 g cartridge; ethyl acetate/hexane = from 0% to 100%) and concentrated to give the title compound (1.240 g, 80.3%) as a white solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87.4% | Tert-butyl 3-(phenylcarbamoyl)azetidine-1-carboxylate (2.000 g, 7.237 mmol) synthesized in step 1 of Example 8 was dissolved in tetrahydrofuran (80 mL), and sodium hydride (60.00 %, 0.579 g, 14.475 mmol) was added slowly to the solution while the temperature was maintained at 0C. The mixture was stirred for 20 minutes, and then <strong>[128577-47-9]methyl 4-(bromomethyl)-3-fluorobenzoate</strong> (2.146 g, 8.685 mmol) was added thereto, followed by additional stirring at 50C for 12 hours. Then, the reaction mixture was cooled down to room temperature, and water (20 mL) was added to the reaction mixture at 0C, followed by stirring for 5 minutes. After completion of the reaction, water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride solution, dried with magnesium sulfate anhydrous, filtered, and then concentrated under reduced pressure. The concentrate was purified by column chromatography (SiO2, 80 g cartridge; ethyl acetate/hexane = from 5% to 50%) and concentrated to give the title compound (2.800 g, 87.4%) as colorless oil. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
32% | With potassium carbonate; In N,N-dimethyl-formamide; at 20℃; for 2h; | General procedure: A mixture of 5 (88 mg, 0.2 mmol), benzyl bromide (36 µL, 0.3 mmol) and K2CO3 (102 mg, 0.74 mmol) in DMF (4 mL) was stirred at ambient temperature for 2 h. The mixture was diluted with water (9 mL) and extracted with ethyl acetate (6 mL × 3). The combined organic layers were washed with water (10 mL × 3) and brine (10 mL), dried over sodium sulfate, filtered and concentrated. The residue was purified by column chromatography (silica gel, DCM : methanol = 20 : 1) to give compound L14 (27 mg, 31% yield) as a light yellow solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | With potassium carbonate; In N,N-dimethyl-formamide; at 20℃; | 9-[[(3-hydroxyphenyl)-phenyl-methyl]carbamoyloxy]-3-oxa-7-azabicyclo[3.3.1]nonane-7-carboxylic acid tert-butyl ester (Intermediate 2-a) (0.205g, 0.438mmol) was dissolved in 10ml DMF, and <strong>[128577-47-9]4-(bromomethyl)-3-fluorobenzoic acid methyl ester</strong> (0.163g, 0.656mmol) and potassium carbonate (0.182 g, 1.31 mmol), the reaction was stirred at room temperature overnight. Concentrate under reduced pressure to remove DMF. The residue was dissolved in 20 ml of ethyl acetate, 20 ml of water was added and stirred, and the layers were separated by standing. The aqueous phase was extracted with ethyl acetate (20 mL x 2). The organic phases were combined, and then saturated brine (40 mL ) Wash, dry with anhydrous sodium sulfate, filter, and concentrate under reduced pressure to obtain a crude product. The crude product is separated and purified by silica gel column chromatography (petroleum ether/ethyl acetate (v/v)=8:1-4:1) to obtain 9-[ [[[3-[[2-Fluoro-4-(methoxy-carbonyl)benzyl]oxy]phenyl]phenyl]methyl]carbamoyl]oxy]-3-oxa-7- Azabicyclo[3.3.1]nonane-7-carboxylic acid tert-butyl ester (18a) (0.243g, yield: 88%). |
Tags: 128577-47-9 synthesis path| 128577-47-9 SDS| 128577-47-9 COA| 128577-47-9 purity| 128577-47-9 application| 128577-47-9 NMR| 128577-47-9 COA| 128577-47-9 structure
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P370 + P380 | In case of fire: Evacuate area. |
P370 + P380 + P375 | In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion. |
P371 + P380 + P375 | In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion. |
Storage | |
Code | Phrase |
P401 | |
P402 | Store in a dry place. |
P403 | Store in a well-ventilated place. |
P404 | Store in a closed container. |
P405 | Store locked up. |
P406 | Store in corrosive resistant/ container with a resistant inner liner. |
P407 | Maintain air gap between stacks/pallets. |
P410 | Protect from sunlight. |
P411 | |
P412 | Do not expose to temperatures exceeding 50 oC/ 122 oF. |
P413 | |
P420 | Store away from other materials. |
P422 | |
P402 + P404 | Store in a dry place. Store in a closed container. |
P403 + P233 | Store in a well-ventilated place. Keep container tightly closed. |
P403 + P235 | Store in a well-ventilated place. Keep cool. |
P410 + P403 | Protect from sunlight. Store in a well-ventilated place. |
P410 + P412 | Protect from sunlight. Do not expose to temperatures exceeding 50 oC/122oF. |
P411 + P235 | Keep cool. |
Disposal | |
Code | Phrase |
P501 | Dispose of contents/container to ... |
P502 | Refer to manufacturer/supplier for information on recovery/recycling |
Physical hazards | |
Code | Phrase |
H200 | Unstable explosive |
H201 | Explosive; mass explosion hazard |
H202 | Explosive; severe projection hazard |
H203 | Explosive; fire, blast or projection hazard |
H204 | Fire or projection hazard |
H205 | May mass explode in fire |
H220 | Extremely flammable gas |
H221 | Flammable gas |
H222 | Extremely flammable aerosol |
H223 | Flammable aerosol |
H224 | Extremely flammable liquid and vapour |
H225 | Highly flammable liquid and vapour |
H226 | Flammable liquid and vapour |
H227 | Combustible liquid |
H228 | Flammable solid |
H229 | Pressurized container: may burst if heated |
H230 | May react explosively even in the absence of air |
H231 | May react explosively even in the absence of air at elevated pressure and/or temperature |
H240 | Heating may cause an explosion |
H241 | Heating may cause a fire or explosion |
H242 | Heating may cause a fire |
H250 | Catches fire spontaneously if exposed to air |
H251 | Self-heating; may catch fire |
H252 | Self-heating in large quantities; may catch fire |
H260 | In contact with water releases flammable gases which may ignite spontaneously |
H261 | In contact with water releases flammable gas |
H270 | May cause or intensify fire; oxidizer |
H271 | May cause fire or explosion; strong oxidizer |
H272 | May intensify fire; oxidizer |
H280 | Contains gas under pressure; may explode if heated |
H281 | Contains refrigerated gas; may cause cryogenic burns or injury |
H290 | May be corrosive to metals |
Health hazards | |
Code | Phrase |
H300 | Fatal if swallowed |
H301 | Toxic if swallowed |
H302 | Harmful if swallowed |
H303 | May be harmful if swallowed |
H304 | May be fatal if swallowed and enters airways |
H305 | May be harmful if swallowed and enters airways |
H310 | Fatal in contact with skin |
H311 | Toxic in contact with skin |
H312 | Harmful in contact with skin |
H313 | May be harmful in contact with skin |
H314 | Causes severe skin burns and eye damage |
H315 | Causes skin irritation |
H316 | Causes mild skin irritation |
H317 | May cause an allergic skin reaction |
H318 | Causes serious eye damage |
H319 | Causes serious eye irritation |
H320 | Causes eye irritation |
H330 | Fatal if inhaled |
H331 | Toxic if inhaled |
H332 | Harmful if inhaled |
H333 | May be harmful if inhaled |
H334 | May cause allergy or asthma symptoms or breathing difficulties if inhaled |
H335 | May cause respiratory irritation |
H336 | May cause drowsiness or dizziness |
H340 | May cause genetic defects |
H341 | Suspected of causing genetic defects |
H350 | May cause cancer |
H351 | Suspected of causing cancer |
H360 | May damage fertility or the unborn child |
H361 | Suspected of damaging fertility or the unborn child |
H361d | Suspected of damaging the unborn child |
H362 | May cause harm to breast-fed children |
H370 | Causes damage to organs |
H371 | May cause damage to organs |
H372 | Causes damage to organs through prolonged or repeated exposure |
H373 | May cause damage to organs through prolonged or repeated exposure |
Environmental hazards | |
Code | Phrase |
H400 | Very toxic to aquatic life |
H401 | Toxic to aquatic life |
H402 | Harmful to aquatic life |
H410 | Very toxic to aquatic life with long-lasting effects |
H411 | Toxic to aquatic life with long-lasting effects |
H412 | Harmful to aquatic life with long-lasting effects |
H413 | May cause long-lasting harmful effects to aquatic life |
H420 | Harms public health and the environment by destroying ozone in the upper atmosphere |
Sorry,this product has been discontinued.
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