光气 、 3-thiomorpholine 、
7-(D-α-phenylglycylamido)-3-(1-methyl-1H-tetrazol-5-yl-thiomethyl)-3-cephem-4-carboxylic acid 、
3-oxo-4-thiomorpholinecarbonyl chloride 生成 7-[D-2-(3-oxo-4-thiomorpholinecarboxamido)-2-phenylacetamido]-3-(1-methyl-1H-tetrazol-5-ylthiomethyl)-3-cephem-4-carboxylic acid