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CAS No. : | 55440-54-5 | MDL No. : | MFCD00013860 |
Formula : | C8H6ClNO2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | CDRZZFCLBUGMMB-UHFFFAOYSA-N |
M.W : | 183.59 | Pubchem ID : | 144009 |
Synonyms : |
|
Signal Word: | Danger | Class: | 6.1 |
Precautionary Statements: | P261-P280-P305+P351+P338-P342+P311 | UN#: | 2811 |
Hazard Statements: | H302-H312-H315-H319-H332-H334-H335 | Packing Group: | Ⅲ |
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 |
---|---|---|
In N,N-dimethyl-formamide |
Yield | Reaction Conditions | Operation in experiment |
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79% | In hexane Ambient temperature; |
Yield | Reaction Conditions | Operation in experiment |
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70% | With triethylamine In acetone for 12h; Heating; |
Yield | Reaction Conditions | Operation in experiment |
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85% | In toluene for 4h; Ambient temperature; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In dichloromethane for 1.5h; Heating; |
Yield | Reaction Conditions | Operation in experiment |
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5-chloro-2-methoxyaniline, phosgene, ethylacetate; |
Yield | Reaction Conditions | Operation in experiment |
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In dichloromethane |
Yield | Reaction Conditions | Operation in experiment |
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In dichloromethane at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
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55% | In toluene Heating; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With triethylamine In dichloromethane at 20℃; for 2h; | 169.A Solid 5-chloro-2-methoxyphenylisocyanate (0.77 g, 4.19 mmol) was added to a solution containing 1.0 g (4.19 mmol) of the bis hydrochloride salt of 4-(4-piperidine)-5-methylimidazole (step A Example 127) and 935 mg (9.24 mmol) of triethylamine in 30 mL of CH2Cl2. The solution was stirred for 2 h at RT and concentrated to yield 1.4 g of the crude desired urea as a white solid. The crude material was used without further purification. |
Yield | Reaction Conditions | Operation in experiment |
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52% |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In dichloromethane for 1h; | 1 1-[2-(Pyrazin-2-ylamino)-pyridin-4-ylmethyl]-1H-indol-4-ylamine (45 mg) is dissolved in DCM (5.0 mL) and 4-Chloro-2-isocyanato-1-methoxy-benzene (30 mg) is added and allowed stir for 1 h. Ether (20 mL) is added to the mixture and the precipated solid is collected by vacuum filtration affording 1-(5-chloro-2-methoxy-phenyl)-3-{1-[2-(pyrazin- 2-ylamino)-pyridm-4-ylmethyl]-1H-mdol-4-yl}-urea as a white solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With hydrogenchloride; triethylamine In tetrahydrofuran | 39 N-(5-Chloro-2-methoxyphenyl)-N'-(2-oxo-2-phenylethyl)urea (XII39) STR49 EXAMPLE 39 N-(5-Chloro-2-methoxyphenyl)-N'-(2-oxo-2-phenylethyl)urea (XII39) STR49 5-Chloro-2-methoxyphenylisocyanate (5.3 g, 29 mmol) was dissolved in THF (250 ml) under N2 and heated to 60° C. To this solution was added 2-aminoacetophenone. HCl (5 g, 29 mmol) followed by triethylamine (3.8 g, 30 mmol). After being stirred 1.5 h, the reaction mixture was diluted with ethyl acetate (2 vol) and washed with 1N HCl solution, saturated NaCO3 solution, and brine before being dried, MgSO4. Concentration gave a solid which was washed with diethylether 6 g (65%).mp 171°-173° C.; I(KBr, ν=cm-1) 3336, 1706, 1644, 1600, 1560, 1482, 1262, 1220, 1182, 1126; 1 H NMR (300 MHz, CDCl3) δ3.79 (3H, s), 4.84 (2H, d, J=4.3 Hz), 5.97 (1H, br.s), 6.71 (1H, d, J=8.7 Hz), 6.88 (1H, dd, J=8.7 Hz, 2.5 Hz), 7.97-8.00 (2H, m), 8.18 (1H, d, J=2.5 Hz); MS(DCl)m/z: 319(MH+) Anal. calcd. for C16 H15 ClN2 O3: C, 60.29; H, 4.74; N, 8.79. Found: C, 60.17; H, 4.64; N, 8.70. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | In toluene | 191 N-(3-Chloro-6-methoxyphenyl)-N'-{4-[(6,7-dimethoxy-4-quinolyl)oxy]phenyl}urea [227] Example 191 N-(3-Chloro-6-methoxyphenyl)-N'-{4-[(6,7-dimethoxy-4-quinolyl)oxy]phenyl}urea [227] 6,7-Dimethoxy-4-(4-aminophenoxy)quinoline (52 mg) was dissolved in toluene (5 ml) with heat, 3-chloro-6-methoxyphenyl isocyanate (111 mg) was added, and the admixture was refluxed with heat for 29 minutes. The resulting residue was purified by column chromatography on silica gel eluding with chloroform/acetone (10/1) to obtain 84 mg of the title compound (yield: 100%). 1 H-NMR (CDCl3, 500 MHz): δ 3.60 (s, 3H), 3.99 (s, 3H), 4.05 (s, 3H), 6.46 (d, J=4.9Hz, 1H), 6.69 (d, J=8.5Hz, 1H), 6.90 (m, 1H), 7.11 (d, J=9.2Hz, 2H), 7.4 2 (s, 1H), 7.5 3 (d, J=8.5Hz, 2H), 7.58 (s, 1H), 7.82 (s, 1H), 8.32 (m, 1H), 8.48 (d, J=5.5Hz, 1H), 8.52 (s, 1H) Mass spectrometry data (FED-MS, m/z): 479 (M+), 481 (M+ +2) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In toluene | 10 EXAMPLE 10 EXAMPLE 10 N-(3-benzoylphenyl)-N'-(2-methoxy-5-chlorophenyl) urea. A mixture of 5-chloro-2-methoxyphenyl isocyanate (1.00 g, 5.4 mmol) and 3-aminobenzophenone (1.29 g, 6.5 mmol) was stirred in toluene (20 ml) for two days. The reaction was filtered and the filter cake washed with toluene. 1.9 g of the title compound was isolated. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In dichloromethane at 20℃; for 3h; | 1; 2 1-(5-chloro-2-methoxy-phenyl)-3-(1-pyridin-4-ylmethyl-1H-pyrrolo[2,3-b]pyridin-4-yl)-urea (1f) Compound 1d (52 mg, 0.233 mmol) is dissolved in dichloromethane (5.0 mL) and 4-bromo-2-isocyanato-1-methoxy-benzene (1.0 equiv., 44 mg, 0.233 mmol) is then added and stirred at room temperature for 3 hours under nitrogen atmosphere. All solvent is then removed by rotary evaporation and the crude product is purified via preparative TLC to afford Compound 1f as an off-white solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With ammonia In tetrahydrofuran at 20℃; for 3h; | 30.a a) N-(5-chloro-2-methoxyphenyl)urea; A solution of 4-chloro-2-isocyanato-1-methoxybenzene (18.0 g, 98 mmols) in tetrahydrofuran (60 mL) was added dropwise to a solution of saturated ammonia in the same solvent (240 mL) at room temperature. It was stirred under the same conditions for 3 hours. The pH of the solution obtained was acidic; therefore a stream of ammonia was passed through until a basic pH was reached. The crude was concentrated in vacuo and the solid obtained was triturated with diethylether. It was filtered, washed and dried and it was recristallized from tetrahydrofuran to give the title compound (16.7 g). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
89% | In tetrahydrofuran at 20℃; for 14.5h; | 1 N-tert-butyloxycarbonyl-N'-(4-aminophenyl)-piperazine (138 mg) and 5-chloro-2-methoxyphenyl isocyanate (138 mg) were dissolved in anhydrous tetrahydrofuran (5 mL) and stirred at room temperature for 14.5 hours. After methanol was added to the reaction solution, the mixed solution was concentrated. The obtained solid was vigorously stirred in hexane/isopropyl ether (5:1), collected by filtration and dried under reduced pressure, and 206 mg (89%) of the title compound was obtained as a pale pink crystal. 1H-NMR spectrum (400MHz,DMSO-d6):δ(ppm)=9.15(1H, s), 8.27(1H, s), 8.21(1H, d, J=2.3Hz), 7.29(2H, d, J=9.0Hz), 7.00(1H, d, J=9.0Hz), 6.94(1H, dd, J=8.6 and 2.8Hz), 6.95(2H, d, J=2.8Hz), 3.87(3H, s), 3.44(4H, t, J=4.9Hz), 2.99(4H, t, J=5.1Hz), 1.42(9H, s). MS(FAB) m/z:461 (M + H)+. Melting point: 205°C. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In dichloromethane |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene | 48 Example 48 (2Z)-2-(3-butyl-5-methyl-1.3.4-thiadiazol-2(3H)-ylidene)-N-(5-chloro-2- methoxyphenyPacetamideA solution of the product from Example 47A (149 mg, 0.5 mmol), DBU (105 μL, 0.75 mmol) and 5 -chloro -2 -methoxy phenyl isocyanate (91 mg, 0.5 mmol) was stirred overnight. The solution was diluted with water (10 mL), extracted with dichloromethane (3 x 5 mL). The organic layers were combined, washed with brine, dried with sodium sulfate and concentrated in vacuo. The residue was purified by the HPLC procedure specified in Example 47B to obtain the title compound. 1H NMR (300 MHz, DMSO-de) δ ppm 0.93 (t, J= 7.5 Hz, 3 H), 1.27 - 1.39 (m, 2 H), 1.64 - 1.75 (m, 2 H), 2.36 (s, 3 H), 3.82 - 3.91 (m, 5 H), 5.81 (s, 1 H), 6.92 - 7.01 (m, 2 H), 8.36 (d, J= 2.4 Hz, 1 H), 8.68 (s, 1 H); MS (ESI) m/z 354 (M+H)+. Anal. Calcd for Ci6H2oClN302S.0.5 C2HF3O2: C, 48.92; H, 4.92; N, 9.99; Found: C, 49.28; H, 5.09; N, 10.07. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In dichloromethane at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In N,N-dimethyl-formamide at 80 - 90℃; for 4 - 5h; | 1 Part II: Preparation of Preferred Compounds of the InventionGeneral method for the preparation of 1-benzyl and 1-propyl indazolone ureas from isocyanates (General method 1)A suspension of 1-benzyl-5-nitro-1,2-dihydro-indazol-3-one (1 eq.) or 1-allyl-5-nitro-1,2-dihydro-indazol-3-one and 10% Pd/C (3-5% equiv.) in MeOH (25 ml per 1 mmol of substrate) was stirred under hydrogen atmosphere (balloon) at room temperature until completion of reduction. After removal of the catalyst and the solvent, the residue was dissolved in acetonitrile (5-15 ml) and the solution was evaporated again. The intermediate reduction product was dried in high vacuum then dissolved in a solvent (DMF or acetonitrile) to make a certain concentration of solution (0.1 to 0.25 based on the solubility). The solution (0.075 mmol) was dispensed to vials followed by adding a desirable isocyanate (0.25 M, 1 equiv.). Then the vials were shaken at 80-90° C. for 4-5 hrs. Solvent removal followed by HPLC purification offered the pure compounds.Example 11-(1-Benzyl-3-oxo-2,3-dihydro-1H-indazol-5-yl)-3-(5-chloro-2-methoxy-phenyl)-urea Following general method 1, described above, 1-(1-benzyl-3-oxo-2,3-dihydro-1H-indazol-5-yl)-3-(5-chloro-2-methoxy-phenyl)-urea was prepared from 1-benzyl-5-nitro-1,2-dihydro-indazol-3-one and 5-chloro-2-methoxyphenyl isocyanate (Yield: 13%). ES-MS calcd for C22H19ClN4O3 (m/e) 422, obsd 423 (M+H). Example 1 1-(1-Benzyl-3-oxo-2,3-dihydro-1H-indazol-5-yl)-3-(5-chloro-2-methoxy-phenyl)-urea Following general method 1, described above, 1-(1-benzyl-3-oxo-2,3-dihydro-1H-indazol-5-yl)-3-(5-chloro-2-methoxy-phenyl)-urea was prepared from 1-benzyl-5-nitro-1,2-dihydro-indazol-3-one and 5-chloro-2-methoxyphenyl isocyanate (Yield: 13%). ES-MS calcd for C22H19ClN4O3 (m/e) 422, obsd 423 (M+H). | |
In acetonitrile at 80 - 90℃; for 4 - 5h; | 1 Part II: Preparation of Preferred Compounds of the InventionGeneral method for the preparation of 1-benzyl and 1-propyl indazolone ureas from isocyanates (General method 1)A suspension of 1-benzyl-5-nitro-1,2-dihydro-indazol-3-one (1 eq.) or 1-allyl-5-nitro-1,2-dihydro-indazol-3-one and 10% Pd/C (3-5% equiv.) in MeOH (25 ml per 1 mmol of substrate) was stirred under hydrogen atmosphere (balloon) at room temperature until completion of reduction. After removal of the catalyst and the solvent, the residue was dissolved in acetonitrile (5-15 ml) and the solution was evaporated again. The intermediate reduction product was dried in high vacuum then dissolved in a solvent (DMF or acetonitrile) to make a certain concentration of solution (0.1 to 0.25 based on the solubility). The solution (0.075 mmol) was dispensed to vials followed by adding a desirable isocyanate (0.25 M, 1 equiv.). Then the vials were shaken at 80-90° C. for 4-5 hrs. Solvent removal followed by HPLC purification offered the pure compounds.Example 11-(1-Benzyl-3-oxo-2,3-dihydro-1H-indazol-5-yl)-3-(5-chloro-2-methoxy-phenyl)-urea Following general method 1, described above, 1-(1-benzyl-3-oxo-2,3-dihydro-1H-indazol-5-yl)-3-(5-chloro-2-methoxy-phenyl)-urea was prepared from 1-benzyl-5-nitro-1,2-dihydro-indazol-3-one and 5-chloro-2-methoxyphenyl isocyanate (Yield: 13%). ES-MS calcd for C22H19ClN4O3 (m/e) 422, obsd 423 (M+H). Example 1 1-(1-Benzyl-3-oxo-2,3-dihydro-1H-indazol-5-yl)-3-(5-chloro-2-methoxy-phenyl)-urea Following general method 1, described above, 1-(1-benzyl-3-oxo-2,3-dihydro-1H-indazol-5-yl)-3-(5-chloro-2-methoxy-phenyl)-urea was prepared from 1-benzyl-5-nitro-1,2-dihydro-indazol-3-one and 5-chloro-2-methoxyphenyl isocyanate (Yield: 13%). ES-MS calcd for C22H19ClN4O3 (m/e) 422, obsd 423 (M+H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In toluene at 20℃; for 0.5h; |
Yield | Reaction Conditions | Operation in experiment |
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In toluene at 20℃; for 0.5h; |
Yield | Reaction Conditions | Operation in experiment |
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In toluene at 20℃; for 0.5h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
28% | In dimethyl sulfoxide at 20℃; for 0.5h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
41% | In dimethyl sulfoxide at 20℃; for 0.5h; |
Yield | Reaction Conditions | Operation in experiment |
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4% | In dimethyl sulfoxide at 20℃; for 0.5h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
15% | With sodium t-butanolate In dimethyl sulfoxide at 20℃; for 0.5h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In dimethyl sulfoxide at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
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In dimethyl sulfoxide at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
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In dimethyl sulfoxide at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
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In dimethyl sulfoxide at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
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Multi-step reaction with 2 steps 1: sodium azide / water / 2 h / 20 °C / Inert atmosphere 2: toluene / 1 h / 110 °C | ||
Multi-step reaction with 2 steps 1: sodium azide / water; acetone / 2 h / 20 °C / Inert atmosphere 2: toluene / 110 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1: dichloromethane 2: sodium cyanoborohydride / acetic acid / 1 h / 20 °C 3: potassium carbonate / N,N-dimethyl-formamide / 80 °C 4: hydrogenchloride / methanol / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: dichloromethane 2: sodium cyanoborohydride / acetic acid / 1 h / 20 °C | ||
Multi-step reaction with 2 steps 1: dichloromethane 2: sodium cyanoborohydride / acetic acid / 1 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: dichloromethane 2: sodium cyanoborohydride / acetic acid / 1 h / 20 °C 3: potassium carbonate / N,N-dimethyl-formamide / 80 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 5 steps 1: dichloromethane 2: sodium cyanoborohydride / acetic acid / 1 h / 20 °C 3: potassium carbonate / N,N-dimethyl-formamide / 80 °C 4: 2,3-dicyano-5,6-dichloro-p-benzoquinone / acetone / 20 °C 5: hydrogenchloride / methanol |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1: dichloromethane 2: sodium cyanoborohydride / acetic acid / 1 h / 20 °C 3: potassium carbonate / N,N-dimethyl-formamide / 80 °C 4: 2,3-dicyano-5,6-dichloro-p-benzoquinone / acetone / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70% | In dichloromethane | 1 A solution of 5-chloro-2-methoxyphenyl isocyanate (Int-4, 5.5 g, 30 mmol) in DCM (20 mL) was added dropwise to the 4-amino- lH-indole in DCM (30 mL) from Step A, and the resulting mixture was stirred overnight, then filtered to give the crude product l-(5-chloro-2-methoxyphenyl)-3-(lH-indol-4-yl)urea (6.6 g, 70%), which was used directly in the next step without purification. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: dichloromethane 2: hydrogenchloride / methanol |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In dichloromethane | 2b To a solution of 4-[(4-amino- lH-indol- 1 -yl)methyl]- 1 -(/-butyloxycarbonyl)- lH-pyrrolo[2,3-6]pyridine (450 mg) in DCM was added 5-chloro-2-methoxyphenyl isocyanate (Int-4, 275 mg, 1.5 mmol). The mixture was stirred overnight, then concentrated, and purified by flash column chromatography to give the desired product 1 -(2-methoxyl-5-chlorophenyl)-3-{l-[l-(?-butyloxycarbonyl)-lH-pyrrolo[2,3-]pyridin-4- ylmethyl]-lH-indol-4-yl}urea (540 mg, 80% for two steps).1H NMR (400 MHz, CDCl3): δ 8.40 (d, J = 1.6, IH), 8.34 (s, J = 4.2, IH), 7.91 (s, IH),7.76 (s, IH), 7.63 (d, J = 4.0, IH), 7.46 (d, J = 7.6, IH), 7.12 (t, J = 8.0, IH), 7.03 (d, J= 3.2, IH), 6.96 (J = 8.4, IH), 6.90, 6.87 (dd, J = 8.8, 2.8, IH), 6.68-6.64 (m, 3H), 6.27(d, J = 4.4, IH), 5.51 (s, 2H), 3.60 (s, 3H), 1.66 (s, 9H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In toluene | 3 A solution of 3-[(4-amino- lH-indol- 1 -yl)methyl]- 1 -(^-butyloxycarbonyl)- IH- pyrrolo[2,3-6]pyridine from previous step and 5-chloro-2-methoxyphenyl isocyanate(Int-14, 275 mg, 1.5 mmol) in toluene was stirred overnight. The reaction mixture was concentrated and purified by flash column chromatography to afford product l-(2- methoxyl-5-chlorophenyl)-3- { 1 -[ 1 -(^-butyloxycarbonyl)- lH-pyrrolo[2,3-6]pyridin-3- ylmethyl]-lH-indol-4-yl}urea (518 mg, 73% for two steps).1H NMR (400 MHz, CDCl3): δ 8.49 (d, J = 5.2, IH), 8.33 (s, IH), 7.65 (s, IH), 7.56 (s,IH), 7.50 (d, J = 8.0, IH), 7.31 (t, J = 6.8, 2H), 7.26-7.25 (m, IH), 7.14 (s, IH), 7.09 (t, J= 6.0, IH), 6.91 (d, J = 8.8, IH), 6.71-6.68 (m, 2H), 6.57 (s, IH), 5.41 (s, 2H), 3.64 (s,3H), 1.67 (s, 9H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: thionyl chloride / dichloromethane / 2 h / Inert atmosphere; Reflux 2: sodium azide / water / 2 h / 20 °C / Inert atmosphere 3: toluene / 1 h / 110 °C | ||
Multi-step reaction with 3 steps 1: thionyl chloride / dichloromethane / 2 h / Inert atmosphere; Reflux 2: sodium azide / water; acetone / 2 h / 20 °C / Inert atmosphere 3: toluene / 110 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In toluene at 110℃; for 1h; | I The acyl azide Int-3 obtained from previous step was dissolved in dry toluene(100 mL). The resulted solution was added slowly to an empty round-bottom flask preheated in an oil bath at 110 0C. Evolution of nitrogen was observed, which ceased after about 1 h of addition. The reaction mixture was then cooled to room temperature and solvent was removed under reduced pressure to yield a yellowish solid residue, which was recrystallized from petroleum ether to afford the desired product Int-4 as white crystals (10.3 g, 56% for 3 steps), which turn yellowish on standing.MS (ESI+): m/z 238.0 (100) [M+MeOH+Na, 35Cl]+, 240.0 (33) [M+MeOH+Na, 37Cl]+. | |
In toluene at 110℃; | I [123] The acyl azide Int-3 obtained from previous step was dissolved in dry toluene (100 mL). The resulted solution was added slowly to an empty round-bottom flask preheated in an oil bath at 110 °C. Evolution of nitrogen was observed, which ceased after about 1 h of addition. The reaction mixture was then cooled to room temperature and solvent was removed under reduced pressure to yield a yellowish solid residue, which was recrystallized from petroleum ether to afford the desired product Int-4 as white crystals (10.3 g, 56% for 3 steps), which turn yellowish on standing.MS (ESI+): m/z 238.0 [M+MeOH+Na, 35C1]+, 240.0 [M+MeOH+Na, 37C1]+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
57% | In methanol at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: dichloromethane 2: sodium cyanoborohydride / acetic acid / 1 h / 20 °C 3: potassium carbonate / N,N-dimethyl-formamide / 80 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1: dichloromethane 2: sodium cyanoborohydride / acetic acid / 1 h / 20 °C 3: potassium carbonate / N,N-dimethyl-formamide / 80 °C 4: 2,3-dicyano-5,6-dichloro-p-benzoquinone / acetone / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 5 steps 1: dichloromethane 2: sodium cyanoborohydride / acetic acid / 1 h / 20 °C 3: potassium carbonate / N,N-dimethyl-formamide / 80 °C 4: 2,3-dicyano-5,6-dichloro-p-benzoquinone / acetone / 20 °C 5: hydrogenchloride / methanol / 60 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1.1: dichloromethane 2.1: sodium cyanoborohydride / acetic acid / 1 h / 20 °C 3.1: potassium carbonate / N,N-dimethyl-formamide / 80 °C 4.1: trifluoroacetic acid / 1 h / 20 °C 4.2: 0.5 h / pH 7 - 8 |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In dichloromethane | VII A solution of 5-chloro-2-methoxyphenyl isocyanate (Int-4, 5.5 g, 30 mmol) in DCM (20 mL) was added dropwise to the 4-amino-lH-indole in DCM (30 mL), and the resulting mixture was stirred overnight, then filtered to give the crude product l-(5-chloro-2- methoxyphenyl)-3-(lH-indol-4-yl)urea (lnt-29, 6.6 g, 70%>), which was used directly in the next step without purification. |
Yield | Reaction Conditions | Operation in experiment |
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48.1% | In diethyl ether at 20℃; Inert atmosphere; | 4.2.6. General procedure for preparation of compounds 33-45 General procedure: 9-Benzyl-1-oxa-9-azaspiro[5.5]undecan-4-amine (7, 156 mg, 0.60 mmol) was dissolved in diethyl ether (8 mL) and treated with the respective isocyanate (0.63 mL, added dropwise). The resulting mixture was stirred overnight. The precipitate formed was separated by filtration, washed with diethyl ether and dried in vacuo to provide the title compound. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1.1: ammonia / tetrahydrofuran / 3 h / 20 °C 2.1: boron tribromide / dichloromethane / -10 - 20 °C 2.2: 0 °C 3.1: potassium carbonate / N,N-dimethyl-formamide / 20 - 50 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1.1: ammonia / tetrahydrofuran / 3 h / 20 °C 2.1: boron tribromide / dichloromethane / -10 - 20 °C 2.2: 0 °C 3.1: potassium carbonate / N,N-dimethyl-formamide / 20 - 50 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1.1: ammonia / tetrahydrofuran / 3 h / 20 °C 2.1: boron tribromide / dichloromethane / -10 - 20 °C 2.2: 0 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | In methanol; dichloromethane at 20℃; for 2h; Inert atmosphere; | General Procedure B General procedure: To a solution of amine derivatives 19a-f (1.0 equiv.) in dichloromethane (0.5-30mL) or N,N-dimethylformamide (1mL) and was added appropriate isocyanate (1.0-2.1 equiv.) and methanol (0-0.20mL) then the reaction mixture was stirred at room temperature. After stirred for 1-16h, the resulting precipitate was collected, washed with dichloromethane (5-20mL) and dried in vacuo to yield the title compounds 20-23, 25-39 in 28-98% yield. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
96% | Stage #1: N-Octyl-3-oxo-butyramide With potassium hydroxide; magnesium(II) chloride In dichloromethane at 25℃; for 0.5h; Inert atmosphere; Stage #2: 2-methoxy-5-chlorophenyl isocyanate In dichloromethane at 25℃; for 1h; Inert atmosphere; |
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