Process for the preparation of 3-amino-2-oxo-pyrrolidines, novel intermediates and their use

摘要

The present invention relates to a process for the preparation of gamma-lactams of the general formula IThe invention relates also to novel advantageous intermediates of the general formulae V, IV and II and their saltsand their use.The compounds of the general formula I are obtained by cyclising compounds of the general formula IIwhich can be prepared from the intermediate compounds V.