7-Amino-3-(1-methyltetrazol-5-ylthiomethyl)-3-cephem-4-carboxylicacid → HCID 131712189, compound

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Reaction Steps

2-Methoxyimino-2-(1,2,3-thiadiazol-4-yl)acetic acid (anti isomer) (1 g.) and 7-amino-3-(1-methyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid (1.9 g.) were reacted according to similar manners to those of Examples 1(b) and 8 to give pale yellow powder of 7-[2-methoxyimino-2-(1,2,3-thiadiazol-4-yl)acetamido]-3-(1-methyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid (anti isomer) (1.5 g.).

Provenance & Evidence