C - Chemistry – Metallurgy – 12 – P
Patent
C - Chemistry, Metallurgy
12
P
C12P 17/18 (2006.01) C07D 503/00 (2006.01) C07D 498/047 (1990.01)
Patent
CA 2117538
A process for the preparation of clavulanic acid or its pharmaceutically acceptable salts and esters in which an amine of formula (II) is used as an intermediate to form a salt with clavulanic acid, R1, R2 and R3 being selected from various substituent atoms and groups.
Cook Michael Allen
Wilkins Robert Bennett
Gowling Lafleur Henderson Llp
Smithkline Beecham P.l.c.
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