反应详情

温度

60 °C

To a solution of (S)-4-{5-[(3,5-Bis-trifluoromethyl-benzyl)-(2-methyl-2H-tetrazol-5-yl)-amino]-7-methyl-8-trifluoromethyl-2,3,4,5-tetrahydro-benzo[b]azepin-1-yl}-cyclohexanecarboxylic acid ethyl ester (0.14 mmol) in methanol (5 mL), add 5N sodium hydroxide (14 mmol). After heating the mixture at 60° C. for 2 h, cool to room temperature and dilute with water (20 mL). Neutralize the mixture using 5M HCl and extract the organics using ethyl actate (3×5 mL). Dry the combined organics over sodium sulfate, filter, and remove the solvent under vacuum. Chromatograph the crude product over silica gel, eluting with methanol/dichloromethane (0-5%) to obtain the separated cis and trans isomers. MS (ES+): 679 (M+H).

1. temperaturecool to room temperature
2. extractionextract the
3. dry with materialDry the combined organics over sodium sulfate
4. filtrationfilter
5. customremove the solvent under vacuum
6. washChromatograph the crude product over silica gel, eluting with methanol/dichloromethane (0-5%)
7. customto obtain the separated cis and trans isomers