发明授权
US06492541B2 Process for the preparation of 3-amino-2-oxo-pyrrolidines, novel intermediates and their use
失效
3-氨基-2-氧代 - 吡咯烷的制备方法，新型中间体及其用途
- 专利标题： Process for the preparation of 3-amino-2-oxo-pyrrolidines, novel intermediates and their use
- 专利标题（中）： 3-氨基-2-氧代 - 吡咯烷的制备方法，新型中间体及其用途
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申请号： US10005817申请日： 2001-12-07
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公开(公告)号： US06492541B2公开(公告)日： 2002-12-10
- 发明人: Karlheinz Drauz , Günter Knaup , Michael Schwarm
- 申请人： Karlheinz Drauz , Günter Knaup , Michael Schwarm
- 优先权： DE19822912 19980522
- 主分类号： C07C30963
- IPC分类号： C07C30963
摘要：
The present invention relates to a process for the preparation of &ggr;-lactams of the general formula I The invention relates also to novel advantageous intermediates of the general formulae V, IV and II and their salts and their use. The compounds of the general formula I are obtained by cyclising compounds of the general formula II which can be prepared from the intermediate compounds V.