The present invention provides a process for the preparation of a nonracemic a-amino acid derivative from an optically active N-acyl lactam using an organometallic reagent to effect the opening of the ring followed by reduction of the ketone carbonyl to an alcohol or a methylene, or by a reductive amination to an amine, or by a ketalization reaction.
本发明提供了一种从手性N-酰基内酰胺中使用有机
金属试剂开环,随后还原酮羰基为醇或亚甲基,或通过还原胺基化为胺,或通过
缩酮反应制备非外消旋
α-氨基酸衍
生物的方法。