7-{D-(-)-α-[ 2-hydroxy-6-(p-tolyl) pyridine-3-carbonylamino]-phenylacetamido}-3-acetoxymethyl-3-cephem-4-carboxylic acid 、
5-thioxo-4,5-dihydro-[1,3,4]thiadiazole-2-carboxylic acid 2-hydroxy-ethylamide 以
碳酸氢钠 为溶剂,
生成 7-{D(-)-α-[2-hydroxy-6-(p-tolyl)pyridine-3-carbonylamino]phenylacetamido}-3-{5-[N-(2-hydroxyethyl)carbamoyl]-1,3,4-thiadiazol-2-ylthiomethyl}-3-cephem-4-carboxylic acid