反应详情

温度

0 °C

A solution of 5-bromo-3-(2-pyrrolidinylethyl)-1H-indole (Example 3b, 303 mg, 1.03 mmol) in ether (12.5 mL) was added to KH (42.9 mg, 1.07 mmol) at 0° C. After stirring at 0° C. for 20 minutes, the reaction mixture was cooled to -78° C. and a solution of tert-butyllithium in pentane (1.7 M, 0.22 mL, 2.1 mmol) was added dropwise. The reaction mixture was stirred at -78° C. for 30 minutes prior to the addition of cyclohexanone (0.22 mL, 2.1 mmol). The reaction was quenched by the addition of pH 7 buffer and the product was extracted into ethyl acetate, washed with water and brine, and dried over sodium sulfate. After removal of the solvent in vacuo, flash chromatography (silica, 5-10% 2M methanolic ammonia in dichloromethane) yielded 5-(1-hydroxycyclohex-1-yl)-3-(2-pyrrolidinylethyl)-1H-indole (116.4 mg, 36%); HRMS-FAB+ for C20H28N2O: calculated MH+ :313.22800; found MH+ :313.23151.

1. temperaturethe reaction mixture was cooled to -78° C.
2. stirringThe reaction mixture was stirred at -78° C. for 30 minutes
3. customThe reaction was quenched by the addition of pH 7 buffer
4. extractionthe product was extracted into ethyl acetate
5. washwashed with water and brine
6. dry with materialdried over sodium sulfate
7. customAfter removal of the solvent in vacuo, flash chromatography (silica, 5-10% 2M methanolic ammonia in dichloromethane)