Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1993-02-24
1995-02-28
Rizzo, Nicholas
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D48704
Patent
active
053938828
ABSTRACT:
A method for preparing 2-amino-.beta.-lactams which are substituted by readily-removed protecting groups is provided. According to this invention, an acyl-2-amino-.beta.-lactam is further acylated with a different acyl group and is subsequently treated with base to provide a protected 2-amino .beta.-lactam with a more desirable protecting group.
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Blaszczak Larry C.
Munroe John E.
Spry Douglas O.
Cantrell Paul R.
Eli Lilly and Company
Rizzo Nicholas
Sales James J.
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