Process for the preparation of 3-amino-2-oxo-pyrrolidines, novel intermediates and their use
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United States of America Patent
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Issued Date -
Sep 27, 2001
app pub date -
May 21, 2001
filing date -
May 22, 1998
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a process for the preparation of .gamma.-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.
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