摘要
7-ACA与苯并噻唑硫醇活性酯反应得到头孢噻肟,在三甲基碘硅烷的作用下与环戊烷并[b]吡啶进行3-位取代得到头孢匹罗二氢碘酸盐,阴离子交换树脂除去碘离子得到的头孢匹罗游离碱再与硫酸成盐,得到抗菌剂硫酸头孢匹罗,总收率45%。
Acylation of 7-ACA with S-benzothiazol-2-yl2-(2-aminothiazol-4-yl) (methoxyimino) thioacetate (MAEM) afforded cefotaxime, which underwent 3-substitution by cyclopentano [b] pyridine and then salt formation using KI/HCI to obtain cefpirome dihydroiodide followed by salt exchange with sulfuric acid to give cefpirome sulfate in 45% overall yield.
出处
《中国医药工业杂志》
CAS
CSCD
北大核心
2005年第8期455-456,共2页
Chinese Journal of Pharmaceuticals