反应详情

温度

50 °C

To a solution of 250 mg of non-racemic 1-(S)-(1-(R)-(3,5-bis(trifluoromethyl)phenyl)ethoxy)-2-(S)-(4-fluorophenyl)-3-(R)-(methylamino)cyclopentane from Example 39 in 6 mL of acetonitrile was added 0.108 mL of t-butyl bromoacetate and 0.36 mL of DIPEA. The reaction was heated at 50° C. for 5 h and then poured into water and extract twice with ethyl acetate. The organic layers were washed with a portion of brine, combined, dried over sodium sulfate and evaporated. The residue was purified by flash chromatography eluting with 0 to 2.5% methanol in methylene chloride to give 294 mg of title compound as an oil. Mass spec (NH3 /CI): 564 (M+1).

1. extractionextract twice with ethyl acetate
2. washThe organic layers were washed with a portion of brine
3. dry with materialdried over sodium sulfate
4. customevaporated
5. customThe residue was purified by flash chromatography
6. washeluting with 0 to 2.5% methanol in methylene chloride