C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/190, 260/118
C07D 519/00 (2006.01) A61K 31/43 (2006.01) A61K 31/44 (2006.01) C07D 499/00 (2006.01)
Patent
CA 1288091
6-Beta(Substituted)-(S)-hydroxymethyl- penicillanic Acids and Derivatives Thereof Abstract Antibacterial penicillins of the formula Image or a pharmaceutically acceptable salt thereof wherein R1 is a heterocyclic group and R is hydrogen, the residue of certain carboxy protecting groups or the residue of an ester group readily hydrolyzable in vivo having activity against resistant organisms.
557293
Chen Yuhpyng L.
Limited Pfizer
Smart & Biggar
LandOfFree
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