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CAS No. : | 14704-31-5 | MDL No. : | MFCD03452790 |
Formula : | C13H11Br | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | RTFPTPXBTIUISM-UHFFFAOYSA-N |
M.W : | 247.13 | Pubchem ID : | 3864405 |
Synonyms : |
|
Num. heavy atoms : | 14 |
Num. arom. heavy atoms : | 12 |
Fraction Csp3 : | 0.08 |
Num. rotatable bonds : | 2 |
Num. H-bond acceptors : | 0.0 |
Num. H-bond donors : | 0.0 |
Molar Refractivity : | 64.71 |
TPSA : | 0.0 Ų |
GI absorption : | Low |
BBB permeant : | Yes |
P-gp substrate : | No |
CYP1A2 inhibitor : | Yes |
CYP2C19 inhibitor : | Yes |
CYP2C9 inhibitor : | Yes |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -4.43 cm/s |
Log Po/w (iLOGP) : | 2.73 |
Log Po/w (XLOGP3) : | 4.76 |
Log Po/w (WLOGP) : | 4.1 |
Log Po/w (MLOGP) : | 4.54 |
Log Po/w (SILICOS-IT) : | 4.57 |
Consensus Log Po/w : | 4.14 |
Lipinski : | 1.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -4.87 |
Solubility : | 0.00331 mg/ml ; 0.0000134 mol/l |
Class : | Moderately soluble |
Log S (Ali) : | -4.49 |
Solubility : | 0.00798 mg/ml ; 0.0000323 mol/l |
Class : | Moderately soluble |
Log S (SILICOS-IT) : | -6.18 |
Solubility : | 0.000165 mg/ml ; 0.000000667 mol/l |
Class : | Poorly soluble |
PAINS : | 0.0 alert |
Brenk : | 1.0 alert |
Leadlikeness : | 2.0 |
Synthetic accessibility : | 2.12 |
Signal Word: | Danger | Class: | 8 |
Precautionary Statements: | P273 | UN#: | 3261 |
Hazard Statements: | H302-H314-H410 | 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 |
---|---|---|
With N-Bromosuccinimide; dibenzoyl peroxide; In tetrachloromethane; | Example 56 A mixture of 3-methylbiphenyl (5.23 g, 31.1 mmol), N-bromosuccinimide (5.56 g, 31.2 mmol), benzoyl peroxide (135 mg, 0.56 mmol), and carbon tetrachloride (150 ml) is refluxed for 17 h. The mixture is concentrated in vacuo and the residue is purified by flash column chromatography (hexane) to give 3-phenylbenzyl bromide. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
To a suspension of NaH (26.4 mg, 1.1 mmol) in dry THF (5 mL) was added tetraethyl methylenediphosphonate (288 mg, 1 mmol). After 20 min, 3-phenylbenzyl bromide (247 mg, 1 mmol) was added to the above solution and the reaction mixture was stirred at room temperature for 12 h. After addition of saturated NH4C1 solution, the product was extracted with ethyl acetate and purified by column chromatography (silica gel) with ethyl acetate and methanol (20: 1, v/v) as the eluent to give the tetraethyl ester of 291A, which was subsequently dissolved in dry acetonitrile (2 mL) and treated with bromotrimethylsilane (0.7 mL) for 12 h. Upon removal of the solvent, the residue was treated with ethanol and water (5 mL, 1: 1) for 1 h. The solvent was evaporated and the residue was dissolved in water (2 mL). Saturated NAOH solution was added to adjust the pH to 10. Ethanol was then added to give, after filtration, the tetrasodium salt of 291A as a white powder (204 mg, 46% overall yield). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99% | In DMF (N,N-dimethyl-formamide); at 60℃; for 2h; | [3-BENZYL-6-MERCAPTO-5-METHYL-LH-PYRIMIDINE-2,] 4-dione (0.25 g, 1.0 mmol) was dissolved in dimethylformamide (10 mL). 3-Phenylbenzyl bromide (0.25 g, 1.02 mmol) was added and the reaction heated at [60 C] for 2 hours. The dimethylformamide was removed in vacuo. The residue was purified by flash chromatography on silica gel eluting with hexane: ethyl acetate (3: 1) to give 3- [BENZYL-6- (BIPHENYL-3-YLMETHYLSULFANYL)-5-METHYL-LH-PYRIMIDINE-2,] 4-dione (0.41 g, 99% yield). MS (APCI+), m/z (%): 415 (100), 413 (30), 247 (100). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
50% | In N,N-dimethyl-formamide; at 60℃; for 3h; | 4-(4-mercapto-5-methyl-2,6-dioxo-3,6-dihydro-2H-pyrimidin-1-ylmethyl)-benzoic acid tert-butyl ester (0.100 g, 0.29 mmol)) was dissolved in dimethylformamide (5 mL). 1-Phenyl-3-bromomethylbenzene (0.075 g, 0.3 mmol) was added and the solution heated at 60 C. for 3 hours. The dimethylformamide was evaporated in a vacuum. The residue was purified by flash chromatography on silica gel eluted with hexane:ethyl acetate (2:1) to give 4-[4-(biphenyl-3-ylmethylsufmanyl)-5-methyl2,6-dioxo-3,6-dihydro-2H-pyrimidin-1-ylmethyl]benzoic acid t-butyl ester (0.075 g, 50% yield). MS (APCl+), m/z 515, 500, 459. |
50% | In DMF (N,N-dimethyl-formamide); at 60℃; for 3h; | [4- (4-MERCAPTO-5-METHYL-2,] 6-dioxo-3, [6-DIHYDRO-2H-PYRIMIDIN-1-] ylmethyl) -benzoic acid tert-butyl ester (0.100 g, 0.29 mmol)) was dissolved in dimethylformamide (5 mL). [1-PHENYL-3-BROMOMETHYLBENZENE] (0. [075] g, 0.3 mmol) was added and the solution heated at [60 C] for 3 hours. The dimethylformamide was evaporated in a vacuum. The residue was purified by flash chromatography on silica gel eluted with hexane: ethyl acetate (2: 1) to give 4- [4- (biphenyl-3-ylmethylsufmanyl)-5-methyl2, 6-dioxo-3,6-dihydro-2H- [PYRIMIDIN-1-YLMETHYL] BENZOIC] acid t-butyl ester (0.075 g, [50%] yield). MS (APCI+), m/z 515,500, 459. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
97% | In methylethylketone (MEK); tert-butyl methyl ether; water; for 18h;Heating / reflux; | A mixture was prepared of 123.4 g of diethanolamine, 100 ml of water and 100 ml of methylethylketone (MEK) and 500 ml of methyl t-butyl ether while stirring under a mild nitrogen purge 124.75 g of. <strong>[14704-31-5]3-(bromomethyl)-1,1'-biphenyl</strong> was added together with 750 ml of methyl t-butyl ether. The mixture was heated to reflux and refluxed for 18 hours, followed by cooling till room temperature. Thereafter the mixture was washed once with 375 ml of 2N NaOH and four times with 375 ml of water. The combined 2N NaOH and water layers were extracted with 750 ml of methyl t-butyl ether. |
97% | Example 1F. Preparation OF 3-L [bis (2-hydroxyethyl) amino] methyl]-1, 1'-biphenyl A mixture was prepared of 123.4 g of diethanolamine, 100 ml of water and 100 ml of methylethylketone (MEK) and 500 ml of methyl t-butyl ether while stirring under a mild nitrogen purge 124.75 g of 3- (bromomethyl)-1, 1'-biphenyl was added together with 750 ml of methyl t-butyl ether. The mixture was heated to reflux and refluxed for 18 hours, followed by cooling till room temperature. Thereafter the mixture was washed once with 375 mi of 2N NAOH and four times with 375 ml of water. The combined 2N NAOH and water layers were extracted with 750 ml of methyl t-butyl ether. The combined methyl t-butyl ether layers were washed with 250 mi of water followed by distillation of as much methyl t-butyl ether as possible from the organic layer. 1350 mi of METHYLETHYLKETONE was added and 600 ml of solvent was distilled of at atmospheric pressure. The solution was cooled to room temperature and stored for use in the next step. Yield based on quantitative assay 97%. | |
97% | In tert-butyl methyl ether; water; butanone; for 18h;Heating / reflux; | A mixture was prepared of 123.4 g of diethanolamine, 100 ml of water and 100 ml of methylethylketone (MEK) and 500 ml of methyl t-butyl ether while stirring under a mild nitrogen purge 124.75 g of <strong>[14704-31-5]3-(bromomethyl)-1,1'-biphenyl</strong> was added together with 750 ml of methyl t-butyl ether. The mixture was heated to reflux and refluxed for 18 hours, followed by cooling till room temperature. Thereafter the mixture was washed once with 375 ml of 2N NaOH and four times with 375 ml of water. The combined 2N NaOH and water layers were extracted with 750 ml of methyl t-butyl ether. The combined methyl t-butyl ether layers were washed with 250 ml of water followed by distillation of as much methyl t-butyl ether as possible from the organic layer. 1350 ml of methylethylketone was added and 600 ml of solvent was distilled of at atmospheric pressure. The solution was cooled to room temperature and stored for use in the next step. Yield based on quantitative assay 97%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium carbonate; In DMF (N,N-dimethyl-formamide); at 90℃; for 19h; | 2-(1-{4-[(Biphenyl-3-ylmethyl)-amino]-phenyl}-but-2-ynyl)-malonic acid dimethyl ester (35.3). A mixture of compound 35.2 (1.0 mmol), 3-(bromomethyl)biphenyl (1.3 mmol) and K2CO3 (2.0 mmol) in DMF (10 ml) was stirred at 90 C. for 19 h. After diluting with ethyl acetate, the mixture was washed with aqueous Na2CO3 and then with brine, dried over Na2SO4, and concentrated in vacuo. The resulting residue was purified using silica gel column chromatography (hexane/ethyl acetate=2/1) to give compound 35.3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium carbonate; | Example 82 Preparation of 1-Biphenyl-3-ylmethyl-4-thiophen-3-yl-1H-imidazole In a manner analogous to Example 81, the compound of Preparation 7 (0.15 g, 1.0 mmol), K2CO3 (0.28 g, 2.00 mmol) and <strong>[14704-31-5]3-bromomethylbiphenyl</strong> (0.26 g, 1.05 mmol) gave 60 mg of the desired material as a beige solid. MS(ES+) m/z 317.1 (M+H+). Anal. (C20H16N2S.0.30H2O) calcd: C, 74.64; H, 5.20 N, 8.70. found: C, 74.56; H, 5.11 N, 8.49. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In tetrahydrofuran; | (4) To a solution of 2.47 g (10 mmol) of 3-phenylbenzylbromide in 30 ml of dry tetrahydrofuran was added 1.99 g (13 mmol) of silver cyanate. The reaction mixture was heated under reflux for 2 hours and filtered. The filtrate was concentrated to obtain 2.56 g of crude 3-phenylbenzylisocyanate. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
PRODUCTION EXAMPLE 31 According to the same manner as described in Production Example 30, except that 118 mg of 2-methyl-5-phenylbenzylbromide is used in place of 111 mg of 3-phenylbenzylbromide, 5-methoxy-2-methyl-4-(2-methyl-5-phenylbenzyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (the compound 6 of the present invention) is obtained. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With nitrogen; In tert-butyl methyl ether; N,N-dimethyl-formamide; | PRODUCTION EXAMPLE 30 A solution of 111 mg (0.45 mmol) of 3-phenylbenzylbromide and 77.4 mg (0.60 mmol) of 5-methoxy-2-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (produced in the following Intermediate Production Example 1) in 2 ml of N,N-dimethylformamide was subjected to nitrogen replacement, followed by quick addition of 24.0 mg (0.60 mmol) of sodium hydride with ice-cooling. The mixture was stirred for 1 hour and further stirred at room temperature overnight. To the reaction mixture was added tert-butyl methyl ether and the mixture was washed with water, dried and concentrated. The residue was subjected to silica gel column chromatography (eluted with n-hexane:ethyl acetate=2:1 and then 1:1) to obtain 51 mg (0.17 mmol) of 5-methoxy-2-methyl-4-(3-phenylbenzyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (the compound 1 of the present invention). The 1H-NMR(CDCl3, TMS) spectrum data agreed with those described in Production Example 1. Also, as a by-product (eluted with n-hexane:ethyl acetate=2:1), 53 mg (0.18 mmol) of 5-methoxy-2-methyl-3-(3-phenylbenzyloxy)-1,2,4-triazole was obtained. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In (2S)-N-methyl-1-phenylpropan-2-amine hydrate; hexane; tert-butyl methyl ether; | (3) To a solution of 5.57 g (30 mmol) of 3-phenylbenzylalcohol in n-hexane was added dropwise 4.06 g (13.5 mmol) of phosphorous tribromide with ice-cooling. The mixture was removed from an ice bath and stirred at room temperature for 3.5 hours. To the reaction mixture were added ice water and tert-butyl methyl ether and the mixture was stirred for 30 minutes and separated. The organic layer was washed twice with water, dried and concentrated to obtain 6.62 g (26.8 mmol) of 3-phenylbenzylbromide. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Example 3 Preparation of 3-(Biphenyl-3-ylmethoxy)-4-imidazol-1-ylmethyl-benzonitrile Hydrochloride Following the procedure described in Example 2, Steps A to F, but using biphenyl-3-ylmethyl bromide, as described in Step B, as starting material, the title compound was obtained as a solid. 1H NMR(CD3OD) d 5.27 (2H, s), 5.52 (2H, s), 7.3-7.7 (14H, m), 8.85 (1H, s). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With n-butyllithium; In tetrahydrofuran; acetonitrile; | Step C Synthesis of 3-(3-phenylphenyl)propanenitrile as an intermediate This compound was prepared in a manner analogous to that of Example 4, Step D, using 6.0 grams (0.024 mole) of 3-phenylphenylmethyl bromide, 2.5 mL (0.048 mole) of acetonitrile, and 19.5 mL (0.048 mole) of n-butyllithium (2.5M in hexanes)in 75 mL of tetrahydrofuran. The yield of 3-(3-phenylphenyl)propanenitrile was 0.6 gram. The NMR spectrum was consistent with the proposed structure. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In hydrogen bromide; | Step B Synthesis of 3-phenylphenylmethyl bromide as an intermediate Under a nitrogen atmosphere a stirred solution of 12.9 grams of 3-phenylphenylmethanol in 50 mL of 47-49% hydrobromic acid was heated at reflux for two hours. Thin layer chromatographic analysis of the reaction mixture indicated that the reaction was incomplete. An additional 50 mL of 47-49% hydrobromic acid was added, and the stirred reaction mixture was heated at reflux for an additional two hours. After this time the reaction mixture was poured into ice-water, and the mixture was extracted with 100 mL of diethyl ether. The extract was dried with magnesium sulfate and filtered. The filtrate was concentrated under reduced pressure, yielding 16.2 grams of 3-phenylphenylmethyl bromide. The NMR spectrum was consistent with the proposed structure. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
54.4% | In acetonitrile; | The dry mixture was then cooled to 60, and a solution of <strong>[14704-31-5]3-bromomethylbiphenyl</strong> (7.5 g, 0.032 mole) and 0.1 g of 1,4-diazabicyclo[2.2.2]octane in 60 ml of acetonitrile was added. 3-Bromomethylbiphenyl may be prepared according to the method of M. Gomberg and J. C. Pernert, J. Am. Chem. Soc., 48, 1372 (1926) and H. O. Huisman, et al., Rec. Trav. Chim., 71, 899 (1951). The mixture was then heated under reflux for 5.5 hours. After cooling to room temperature, the reaction mixture was contacted with 100 g of ice in a separatory funnel, and when the ice had melted the phases were separated. The aqueous phase was saturated with sodium chloride before being extracted twice with 100 ml portions of heptane. The heptane extracts and the organic phase were combined, and the combined organic phase was washed with one 200 ml portion of a saturated sodium chloride solution. The solvent was removed from the organic phase using a rotary evaporator, leaving an oily, straw-colored residue weighing 9.9 g. The oil was distilled in a short path, air-bath heated Kugelrohr distillation apparatus at a pressure of 0.25 mm. After removing low boilers from the oil at a temperature below 145, [1,1'-biphenyl]-3-ylmethyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate (6.5 g, 54.4% yield) was obtained at a temperature of 165-175. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58% | To a solution of ethyl 5-hydroxy-6-(l-methylethyl)-3-oxo-2,3-dihydro-4- pyridazinecarboxylate (example 46(a), 0.125 g, 0.55 mmol) in N,N-Dimethylformamide (DMF) (5 ml) at 0 0C was added sodium hydride (0.055 g, 0.138 mmol) in portions. The reaction mixture was stirred at room temperature for 45 minutes and then cooled back to 0 0C and 3-phenylbenzyl bromide (0.137 g, 0.55 mmol) was added. The mixture was stirred at ambient temperature for 3 hours then quenched with IN HCl (3 ml) extracted with ethyl acetate (2 x20 ml). The organic layers were combined, dried over Magnesium sulfate, filtered and solvents removed with rotary evaporation. The crude oil was purified by flash column chromatography (10-100% ethyl acetate in hexanes) to provide the title compound ethyl 2-(2-biphenylylmethyl)-5-hydroxy-6-(l- methylethyl)-3 -oxo-2,3 -dihydro-4-pyridazinecarboxylate (125 mg, 0.32 mmol, 58 % yield) as a pale yellow solid that was used immediately in the next step. MS(ES+) m/e 393 [M+H]+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
40% | With N-ethyl-N,N-diisopropylamine; potassium iodide; In acetonitrile; at 80℃; for 4h; | Step 4 3-Phenylbenzyl-7-(piperazin-1-yl)benzo[d]oxazol-2(3H)-one: A mixture of 7-(piperazin-1-yl)benzo[d]oxazol-2(3H)-one (100 mg, 0.46 mmol), 3-bromomethyl-biphenyl (112 mg, 0.45 mmol), potassium iodide (102 mg, 0.61 mmol), N,N-diisopropylethylamine (176 mg, 1.36 mmol) and acetonitrile (30 mL) was stirred at about 80 C. for about 4 hours, and then water (10 ml) was added. Standard extractive workup with ethyl acetate (50 ml*2) gave the title product (70 mg, yield=40%). LC-MS: m/z=386 (MH)+; 1H NMR (300 MHz, DMSO) delta 11.52 (s, 1H), 7.34-7.68 (m, 9H), 6.99-7.04 (t, J=8.1 Hz, 1H), 6.59-6.64 (t, J=8.1 Hz, 2H), 3.62 (s, 2H), 3.20-3.34 (d, 4H), 2.51-2.59 (d, 4H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium carbonate; In N,N-dimethyl-formamide; at 100℃; for 2h; | Intermediate 383-(Bromomethyl)biphenyl (150 mg, 0.58 mmol), sodium carbonate (188 mg, 1.75 mmol) and 3-amino-2-methyl-benzoic acid ethyl ester (0.1 ml, 0.58 mmol) were mixed in 2 ml of DMF and stirred at 1000C for 2 hours. The solvent was then concentrated under vacuum and the crude product was purified by reverse phase preparative HPLC. 131 mg (0.37 mmol) of the desired compound were obtained. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
45% | N-Butyllithium (1.5M, 0.47 mL, 0.71 mmol) was added dropwise to a -3O0C stirring solution of diisopropylamine (0.10 mL, 0.71 mmol) in THF (0.35 mL). After 30 minutes, the solution was cooled to -780C. 2-Chloro-3,6-dimethylpyridine (0.094g, 0.66 mmol) in o THF (0.30 mL) was slowly added. The mixture stirred at -780C for 1 hour and then was treated with a solution of 3-(bromomethyl)biphenyl (0.176g, 0.71 mmol) in THF (0.40 mL). The mixture was allowed to gradually warm to ambient temperature overnight by evaporation of the bath. The solvent was removed in vacuo and the residue partitioned between water and EtOAc. The organic portion was washed (water, brine), dried s (MgSO4), and evaporated to a crude oil that was chromatographed with 19:1 and 9:1 hexane/EtOAc, respectively, to give the product as a colorless oil (0.092g, 45%). 1H NuMR (300 MHz, CDCl3): delta 2.35 (s, 3H); 3.09 (s, 4H); 6.92 (d, IH, J=7.5); 7.13-7.21 (m, IH), 7.30-7.60 (m, 9H). m/z (APCI) 308 [M+l]. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium carbonate; In acetonitrile; for 72h;Reflux; | Example 17 7-(Benzyloxy)-3-r(3-phenylbenzyl)-methyll-2,3,4,5-tetrahydro-lH-3-benzazepine-l-olTo 7-Benzyloxy-2,3,4,5-tetrahydro-lH-3-benzazepine-l-ol (250.1 mg, 0.93 mmol) from step 11.4 in CH3CN (25 mL), K2CO3 (513.7 mg, 3.7 mmol) and 3-phenylbenzyl-bromide (299.0 mg, 1.21 mmol) were added. The suspension was heated at reflux for 72 h. In the following step K2CO3 was filtered and the solvent was evaporated. The residue was purified by flash chromatography (n-hexane: ethyl acetate 7 : 3 and 1 % N,N-dimethylethanamine, 0 3 cm, fraction size 10 mL, Rf = 0.29). The titled compound was obtained as pale yellow oil. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90% | With sodium azide; In dimethyl sulfoxide; at 80℃; | A suspension of 3-phenylbenzylbromide (5 g; 20.2 mmol) and NaN3 (2.6 g; 40.4 mmol) in DMSO (50 mL) was stirred overnight at 80 C. After cooling to r.t., water (50 mL) was added and the resultingmixture was extracted with diethyl ether (4 × 50 mL). The organic layers were combined, washed withwater (2 × 50 mL) and brine (2 × 50 mL), dried over anhydrous sodium sulfate and filtered. The diethylether was carefully evaporated under reduced pressure (azide is partially volatile and could be explosive) to give bright brown crude product, which was purified by flash chromatography on silica gel using a linear gradient of diethyl ether in petroleum ether to give 9 (3.8 g, 90%, colorless liquid). |
With sodium azide; In water; N,N-dimethyl-formamide; at 85℃; | General procedure: B: For benzyl azides: The benzyl bromide (0.6 mmol) and sodium azide (59.1 mg, 0.9 mmol) were dissolved in DMF/H2O (2 mL, 2:1). The mixture was stirred overnight at 85 C. Then water (8 mL) was added and the crude mixture was extracted with ether(10 mL x 3), the combined organic layers were washed with brine, dried over anhydrous Na2SO4, filtered and concentrated to give a crude azido compound, which was used as such in the subsequent step. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With tetra-(n-butyl)ammonium iodide; potassium carbonate; In acetonitrile; for 72h;Reflux; | Example 17: 7-(Benzyloxy)-3-[(3-phenylbenzyl)-methyl]-2,3,4,5-tetrahydro-1 H-3- benzazepine-1 -ol [184] To 7-Benzyloxy-2,3,4,5-tetrahydro-1 -/-3-benzazepine-1 -ol (250.1 mg, 0.93 mmol) from step 1 1.4 in CH3CN (25 mL), K2C03 (513.7 mg, 3.7 mmol) and 3-phenylbenzyl-bromide (299.0 mg, 1 .21 mmol) were added. The suspension was heated at reflux for 72 h. In the 1335 following step K2C03 was filtered and the solvent was evaporated. The residue was purified by flash chromatography (n-hexane: ethyl acetate 7 : 3 and 1 % Lambda/,/V-dimethylethanamine, 0 3 cm, fraction size 10 mL, Rf = 0.29). The titled compound was obtained as pale yellow oil. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82% | General procedure: Compound 5 (0.79 g, 3.30 mmol) with NaH (0.16 g, 3.95 mmol) were stirred in DMF for 1.5 h under nitrogen. Methyl iodide (308 muL, 4.90 mmol) was added to the reaction mixture, which was stirred for overnight at rt. The reaction mixture was diluted with ethyl acetate (30 mL) and washed with brine (30 mL × 3), dried (MgSO4), filtered and concentrated under reduced pressure. Compound 17 was obtained as yellow solid (0.603 g, 73%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
84% | With resin-supported 2-tert-butylimino-2-diethylamino-1,3-dimethylperhydro-1,3,2-diazaphosphorine; In acetonitrile; at 90℃; | Example 1 2-(N-(biphenyl-3-ylmethyl)-2,2-dimethylchroman-6-sulfonamido)acetic acid To a solution of tert-butyl 2-(2,2-dimethylchroman-6-sulfonamido)acetate (20 mg, 0.056 mmol) in acetonitrile (1 mL) was added 3-(bromomethyl)biphenyl (19.47 mg, 0.079 mmol) and resin-supportedBEMP (42.9 mg, 0.084 mmol). The mixture was heated in an oil bath at 90 C. overnight. The reaction mixture was filtered, and the filtrate was concentrated to give an orange residue, which was purified by preparative HPLC using MeCN-H2O-0.1% TFA as the solvent to obtain tert-butyl 2-(N-(biphenyl-3-ylmethyl)-2,2-dimethylchroman-6-sulfonamido)acetate as an oil (26 mg, 84% yield). 1H NMR (500 MHz, CDCl3) delta 7.64-7.60 (m, 2H), 7.54-7.49 (m, 3H), 7.44-7.40 (m, 3H), 7.38 (dd, J=9.4, 5.8 Hz, 1H), 7.33 (ddd, J=6.7, 4.0, 1.2 Hz, 1H), 7.22 (d, J=7.7 Hz, 1H), 4.57 (s, 2H), 3.84 (s, 2H), 2.78 (t, J=6.7 Hz, 2H), 1.80 (t, J=6.7LRMS [ESI, MNa+] m/z calcd for C30H35NO5SNa 544.21, found 544.32. |
With 2-tert-butylimino-2-diethylamino-1,3-dimethyl-perhydro-1,3,2-diazaphosphorine; In acetonitrile; at 70℃; | General procedure: Benzyl bromide (10.64 lL, 0.089 mmol) was added to an acetonitrile(1.0 mL) solution of tert-butyl ((4-(difluoromethoxy)phenyl)sulfonyl)glycinate (20 mg, 0.059 mmol) followed by 2-tert-butylimino-2-diethylamino-1,3-dimethylperhydro-1,3,2-diazaphosphorine (BEMP) on resin (53.2 mg, 0.107 mmol). Themixture was agitated at 70 C overnight. The solvent was removedand dichloromethane (2.0 mL) was added. The mixture was filtered to remove the resin. TFA (0.7 mL) was added. After 1 h an LC-MSshowed the reaction was complete. The solvent was removedand the crude material dissolved in methanol and purified usingpreparative HPLC employing acetonitrile/water and 0.1% TFA bufferwith a 30 mm 100 mm XterraTM column. The fractions containingthe desired product were combined. The solvent was removed in vacuo and the title compound obtained as a white solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
64% | With potassium carbonate; In acetonitrile; for 3h;Reflux; | To a round-bottom flask was charged with compound 12a (280 mg, 0.44 mmol), 3-phenylbenzyl bromide (150 mg, 0.61 mmol), K2C03 (80 mg) and ACN (10 mL). The reaction mixture was stirred at refluxing temperature for 3 hr. When TLC indicated complete consumption of starting material, the reaction mixture was poured into a separating funnel containing water. The mixture was continuously extracted with CH2CI2. The combined organic layers were dried over MgS04, filtered and evaporated to give a crude reaction mixture, which was subjected to purification by flash column chromatography on silica gel with 10-20 % acetone in CH2CI2 as eluent to furnish the titled compound 56 as a white foam (225 mg, 64%); 1H NMR (CDCI3) delta 2.90 (br, 4 H), 3.73 - 3.99 (m, 10 H), 4.07 - 4.26 (m, 4 H), 6.71 (s, 2 H), 6.97 (d, J = 8.98 Hz, 4 H), 7.32 - 7.55 (m, 7 H), 7.56 - 7.72 (m, 9 H), 7.81 (d, J = 8.59 Hz, 4 H), 8.21 (d, J = 7.80 Hz, 2 H); 13C NMR (CDCI3) delta 53.9, 59.8, 67.6, 69.3, 70.7, 106.1 , 115.0, 116.3, 1 17.9, 123.9, 124.1 , 125.1 , 125.6, 125.8, 127.1 , 127.2, 127.9, 128.7, 133.5, 141.1 , 156.1 , 161.6,163.2, 178.3; LRMS (ESI) m/z 800 (M+ + H, 100), 822 (M+ + Na, 17); HRMS (ESI) Calcd for C5iH46N08(M+ + H) 800.3223, found 800.3190 |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20 - 60℃; for 1h;Inert atmosphere; | A solution of 6-(2,6-dimethoxyphenyl)piperidin-2-one (70 mg; 0.29 mmol; 1.0 equiv.) in anh. DMF (3 ml) was treated at rt with NaH (60% dispersion in mineral oil; 71 mg; 1.78 mmol; 6.0 equiv.), and 3-(bromomethyl)-1 ,1'- biphenyl (110 mg; 0.44 mmol; 1.5 equiv.). The resulting mixture was then heated to 60C, under nitrogen, for 1 h. The reaction mixture was allowed to cool to rt, and a solution of aq. sat. NaHC03 (10 ml) was added. After extractions with AcOEt (2 x 20 ml), the mixed organic layers were further washed with brine (10 ml), dried over anh. MgS04, filtered, and concentrated to dryness under reduced pressure. Purification by preparative HPLC afforded 1-([1 ,1'-biphenyl]-3-ylmethyl)-6-(2,6-dimethoxyphenyl)piperidin-2-one as a colorless oil. LC-MS (conditions A): tR = 0.95 min.; [M+H]+: 402.16 g/mol. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium carbonate; In acetone; at 80℃; | General procedure: A stirred mixture of appropriate ethyl 5-hydroxy-2-arylbenzofuran-3-carboxylate (1 mol equiv), appropriately substituted benzyl bromide (1.2 mol equiv) and anhydrous potassium carbonate (3 mol equiv) in 10 mL acetone was refluxed for 6-8 h at 80 C over oil bath. After evaporation of solvent under reduced pressure crude product so obtained was purified by column chromatography (ethyl acetate/hexane) 1:19 yielded the desired compound (A) as crystalline solid in excellent yield. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium carbonate; In acetone; at 80℃; | General procedure: A stirred mixture of appropriate ethyl 5-hydroxy-2-arylbenzofuran-3-carboxylate (1 mol equiv), appropriately substituted benzyl bromide (1.2 mol equiv) and anhydrous potassium carbonate (3 mol equiv) in 10 mL acetone was refluxed for 6-8 h at 80 C over oil bath. After evaporation of solvent under reduced pressure crude product so obtained was purified by column chromatography (ethyl acetate/hexane) 1:19 yielded the desired compound (A) as crystalline solid in excellent yield. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium carbonate; In acetone; at 80℃; | General procedure: A stirred mixture of appropriate ethyl 5-hydroxy-2-arylbenzofuran-3-carboxylate (1 mol equiv), appropriately substituted benzyl bromide (1.2 mol equiv) and anhydrous potassium carbonate (3 mol equiv) in 10 mL acetone was refluxed for 6-8 h at 80 C over oil bath. After evaporation of solvent under reduced pressure crude product so obtained was purified by column chromatography (ethyl acetate/hexane) 1:19 yielded the desired compound (A) as crystalline solid in excellent yield. |
Tags: 14704-31-5 synthesis path| 14704-31-5 SDS| 14704-31-5 COA| 14704-31-5 purity| 14704-31-5 application| 14704-31-5 NMR| 14704-31-5 COA| 14704-31-5 structure
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