7-Amino-3-(1-methyltetrazol-5-ylthiomethyl)-3-cephem-4-carboxylicacid → HCID 131712003, compound

Participants

Reaction Steps

2-(4-Formyl-(2,3-dihydro-4H-1,4-thiazin-5-yl)-2-methoxyiminoacetic acid (syn isomer, 2.3 g.) was allowed to react with 7-amino-3-(1-methyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid (3.3 g.) in a similar manner to that of Example 1 to give the captioned compound (2.5 g.), pale yellow powder, mp. 150° to 155° C. (dec.).

Provenance & Evidence