Synonyms: | (6R,7S)-7-Bromoacetylamino-7-methoxy-3-[(1-methyl-1H-tetrazol-5-ylthio)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid;(7S)-7-(Bromoacetylamino)-7-methoxy-3-[[(1-methyl-1H-tetrazole-5-yl)thio]methyl]cepham-3-ene-4-carboxylic acid |