反应详情

To a solution of cis-(S)-2-({4-[5-chloro-2-(1-hydroxy-1-methyl-ethyl)-benzoimidazol-1-yl]-cyclohexylamino}-methyl)-indan-5-carbonitrile (25 mg, 0.054 mmol) in methylene chloride (5 mL) was added triethylamine (11 mg, 0.108 mmol), acetyl chloride (5 mg, 0.063 mmol) and trace amount of 4-dimethylaminopyridine. The mixture was stirred at room temperature for 65 hours. The reaction mixture was diluted with dichloromethane and the solution was washed with saturated aqueous sodium bicarbonate solution followed by brine. The organic extract was dried over sodium sulfate, filtered and evaporated under reduced pressure. The residue was subjected to column chromatography, eluting with dichloromethane and ethyl acetate in the presence of 4% methanol to give cis-(S)—N-{4-[5-chloro-2-(1-hydroxy-1-methyl-ethyl)-benzoimidazol-1-yl]-cyclohexyl}-N-(5-cyano-indan-2-ylmethyl)-acetamide (15 mg). LC-MS showed a single peak, C29H33ClN4O2 (m/e) calcd 504.2292, obsd 505.3. 1H-NMR (CD3OD) □ 7.67 (br, 1H) 7.59 (s, 2H), 7.50 (d, 1H), 7.40 (d, 1H), 7.23 (d, 1H), 5.57 (m, 1H), 3.48 (br d, 2H), 3.15 (m, 2H), 2.97 (m, 1H), 2.84 (m, 2H), 2.59 (br, 2H), 2.32 (br, 1H), 2.11 (br s, 2H), 1.93 (m, 4H), 1.72 (s, 6H), 1.28 (s, 3H).

1. washthe solution was washed with saturated aqueous sodium bicarbonate solution
2. extractionThe organic extract
3. dry with materialwas dried over sodium sulfate
4. filtrationfiltered
5. customevaporated under reduced pressure
6. washeluting with dichloromethane and ethyl acetate in the presence of 4% methanol