摘要
Asymmetric conjugated addition of allylcopper reagents derived from an allyl Grignard reagent and CuBr·Me_2S to chiralα,β-unsaturated N-acyl oxazolidinones has been achieved.The synthetic procedure was applied to the preparation of the key intermediate of the novel nonbenzodiazepine hypnotic drug,ramelteon.
Asymmetric conjugated addition of allylcopper reagents derived from an allyl Grignard reagent and CuBr·Me_2S to chiralα,β-unsaturated N-acyl oxazolidinones has been achieved.The synthetic procedure was applied to the preparation of the key intermediate of the novel nonbenzodiazepine hypnotic drug,ramelteon.
基金
the Shanghai Municipal Natural Science Foundation(No10ZR1409600)
