(6R,7R)-7-[4-bromo-2-[(Z)-methoxyimino]-3-oxobutyramido]-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 、
硒脲 生成 sodium;(6R,7R)-7-[[(2Z)-2-(2-amino-1,3-selenazol-4-yl)-2-methoxyiminoacetyl]amino]-3-[(1-methyltetrazol-5-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate