Process for preparation of alkali metal salts of ampicillin

Details Process for preparation of alkali metal salts of ampicillin Process for preparation of alkali metal salts of ampicillin

1977-05-18

1978-12-19

Schwartz, Gerald A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D49968

Patent

active

041305582

ABSTRACT:
A process for the preparation of an alkali metal salt of ampicillin, especially the sodium salt, which comprises adding to an aqueous suspension of ampicillin, at a temperature not exceeding about 4.degree. C, an aqueous solution of an equimolar or somewhat lesser amount of an alkali metal base, filtering the resulting solution until sterile, freezing the filtrate, and lyophilizing the frozen filtrate.

REFERENCES:
patent: 4029804 (1977-06-01), Clark et al.
Kirk-Othmer, Encyclopedia of Chemical Technology, 2nd ed. pp. 368-369 (1965).

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