C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/111, 260/118
C07D 499/00 (2006.01)
Patent
CA 1080698
ABSTRACT OF THE DISCLOSURE A class of ketenimine intermediates are prepared from 6-acylaminopenicillins having an .alpha.-carboxy substituent in the side-chain, and are useful in the preparation of 6.alpha.-methoxy-.alpha.- carboxy penicillins.
281139
Burton George
Clayton John P.
Taylor Andrew W.
Beecham Group Limited
Na
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