Process for the preparation of 3-amino-2-oxo-pyrrolidines, novel intermediates and their use
申请人:Degussa-Huls Aktiengensellschaft
公开号:US20010025109A1
公开(公告)日:2001-09-27
The present invention relates to a process for the preparation of &ggr;-lactams of the general formula I
1
The invention relates also to novel advantageous intermediates of the general formulae V, IV and II and their salts
2
and their use.
The compounds of the general formula I are obtained by cyclising compounds of the general formula II
3
which can be prepared from the intermediate compounds V.
本发明涉及一种制备一般式I的γ-内酰胺的方法。本发明还涉及一般式V、IV和II的新型优势中间体及其盐和用途。一般式I的化合物是通过环化一般式II的化合物得到的,而一般式II的化合物可以从中间体化合物V制备。