The technology and equipment for the process of side-chainchlorination, oxidation, diazotization and coupling are introduced.
介绍了侧链氯化、氧化、重氮化和偶合的工艺及设备。
2
Cefixime open side chain acid was prepared by oximation, etherification, chlorination, ester decomposition using t-butyl acetoacetate as starting material.