2-oxo-1-pyrrolidine derivatives, process for preparing them and their uses
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United States of America Patent
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May 15, 2007
Grant Date -
Jul 21, 2005
app pub date -
Jan 4, 2005
filing date -
Feb 23, 2000
priority date (Note) -
Expired
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Abstract
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 .alpha.-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-.alpha.-ethyl-2-oxo-1-pyrrolidine acetamide.
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