Processes for the preparation of cephem derivatives

Details Processes for the preparation of cephem derivatives Processes for the preparation of cephem derivatives

2004-10-30

2009-06-09

Berch, Mark L (Department: 1624)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C540S226000, C540S230000

Reexamination Certificate

active

07544797

ABSTRACT:
Provided is a process for preparing a compound of formula 1 or its salt, which includes reacting a compound of formula 2 with a compound of formula 3 in the presence of a base.

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