C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/244.2
C07D 498/04 (2006.01) C07D 205/085 (2006.01) C07D 505/00 (2006.01)
Patent
CA 1070688
CEPHALOSPORIN ANALOGUES ABSTRACT Potent antibacterial cephalosporin analogues of the formula: Image (wherein A and B are each hydrogen or an amino-protecting group; X is hydroxy or a carboxy-protecting group; and Y is hydrogen or methoxy; provided that when A is hydrogen B cannot be hydrogen or phenylglycyl) new process for preparing them for penicillins through azetidinone derivatives, and bactericidal compositions for pharmaceutical and veterinary use.
265376
Hamashima Yoshio
Nagata Wataru
Narisada Masayuki
Nishitani Yasuhiro
Onoue Hiroshi
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