Process for the preparation of sodium amoxycillin

Details Process for the preparation of sodium amoxycillin Process for the preparation of sodium amoxycillin

C - Chemistry, Metallurgy

07

D

260/114.7

C07D 499/68 (2006.01) C07D 499/00 (2006.01)

Patent

CA 1272189

ABSTRACT OF THE DISCLOSURE A process for the preparation of sodium amoxycillin, of use for parenteral administration, comprising: (a) suspending amoxycillin trihydrate in a mixture comprising an aprotic organic solvent and a lower alcohol; (b) solubilizing the amoxycillin trihydrate by the addition of a low molecular weight amine; (c) adding to such solution the sodium salt of diethyloxalacetic acid, agitating the reaction mixture at a temperature of from -10°C to ambient temperature and finally isolating the sodium amoxycillin by filtration after its precipitation in the reaction medium by the addition of a aprotic organic solvent.

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