C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/114.3
C07D 499/70 (2006.01) C07D 499/00 (2006.01)
Patent
CA 1200239
IMPROVED PROCESS FOR PREPARING 6-[D(-)-alpha-(4-C1-C4)- ALKYL-2,3-DIOXO-1-PIPERAZINOCARBONYLAMINO)PHENYL- ACETAMIDO]PENICILLANIC ACIDS ABSTRACT OF THE DISCLOSURE Improved process for the preparation of 6-substi- tuted penicillanic acids, in particular 6-[D(-)-alpha-(4- -alkyl-2,3-dioxo-1-piperazinocarbonylamino)phenylacetamido] penicillanic acids, and the pharmaceutically acceptable salts thereof.
395121
Bernady Karel F.
Boop Donald C.
American Cyanamid Company
Smart & Biggar
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