Trifluoroacetic acid → HCID 131712706, compound

Participants

Reaction Steps

To a solution of benzhydryl 7-[2-methoxyimino-2-(2-formamidothiazol-4-yl)acetamido]-3-(4-methyl-1-piperazinyl)carbonyloxymethyl-3-cephem-4-carboxylate.trifluoroacetate (syn isomer) (1.4 g ) in methylene chloride (30 ml) were added anisole (1.4 ml) and trifluoroacetic acid (1.83 ml) with stirring under ice-cooling and the stirring was continued for 4 hours at 5° C. The reaction mixture was evaporated and the residual oil was pulverized in diethyl ether, collected by filtration and then dried to give 7-[2-methoxyimino-2-(2-formamidothiazol-4-yl)acetamido]-3-(4-methyl-1-piperazinyl)carbonyloxymethyl-3-cephem-4-carboxylic acid.trifluoroacetate (syn isomer) (1.1 g).

Provenance & Evidence