(6R,7R)-7-amino-3-[[(2,5-dihydro-2,6-dimethyl-5-oxo-as-triazin-3-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 、
2-(2-chloroacetamidothiazol-4-yl)-2-(syn)-methoxyiminoacetyl chloride 生成 (6R,7R)-7-[[(2Z)-2-[2-[(2-chloroacetyl)amino]-1,3-thiazol-4-yl]-2-methoxyiminoacetyl]amino]-3-[(2,6-dimethyl-5-oxo-1,2,4-triazin-3-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid