The invention concerns 2-oxo-1-pyrrolidine derivatives and a process for preparing them and their uses. The invention also concerns a process for preparing &agr;-ethyl-2-oxo-1-pyrrolidine acetamide derivatives from unsaturated 2-oxo-1-pyrrolidine derivatives. Particularly the invention concerns novel intermediates and their use in methods for the preparation of S-&agr;-ethyl-2-oxo-1-pyrrolidine acetamide.
本发明涉及2-氧代-1-
吡咯烷衍
生物及其制备方法和用途。本发明还涉及从不饱和的2-氧代-1-
吡咯烷衍
生物制备α-乙基-2-氧代-1-
吡咯烷乙酰胺衍
生物的方法。特别地,本发明涉及新型中间体及其在制备S-α-乙基-2-氧代-1-
吡咯烷乙酰胺的方法中的应用。