7-(2-(4-Ethyl-2,3-dioxopiperazinylcarbonylamino)-2-(p-hydroxyphenyl)acetamido)cephalosporanic acid 、
1-甲基-5-巯基-1H-四氮唑 以
硝基甲烷 为溶剂,
生成 3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-7-(2-(4-ethyl-2,3-dioxopiperazinylcarbonylamino)-2-(p-hydroxyphenyl)acetamido)-3-cephem-4-carboxylic acid