Crystalline cephalosporin derivative

Details Crystalline cephalosporin derivative Crystalline cephalosporin derivative

1974-12-18

1976-07-20

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

424246, C07D50120

Patent

active

039706516

ABSTRACT:
The antibacterial agent 7-[D-.alpha.-amino-.alpha.-(p-hydroxyphenyl)acetamido]-3-(1,2,3-triazol-5- ylthiomethyl)-3-cephem-4-carboxylic acid, which is a zwitterion, is both purified and converted to a form highly suitable for use in aqueous suspensions by converting it to the crystalline 7-[D-.alpha.-amino-.alpha.-(p-hydroxyphenyl)acetamido]-3-(1,2,3-triazol-5- ylthiomethyl)-3-cephem-4-carboxylic acid 1,2-propylene glycolate, said propylene glycolate containing 1.0 - 1.6 moles of 1,2-propylene glycol per mole of cephalosporin zwitterion.

REFERENCES:
patent: 3708478 (1973-01-01), Chapman et al.
patent: 3855213 (1974-12-01), Dunn et al.
patent: 3867380 (1975-02-01), Dunn et al.

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