摘要
以7-苯乙酰氨基-3-氯甲基头孢烷酸对甲氧基苄酯为原料经Wittig反应、水解、酶解三步反应合成重要的药物中间体——7-氨基-3-乙烯基头孢烷酸,总收率71.2%。其结构经1H NMR和IR表征。
A key drug intermediate, 7-amino-3-vinylcephalosporanic acid, was synthesized from 7- phenylacetamide-3-chloromethyl-3-eepham-4-carboxylic acid p-methoxybenzyl ester by a three-step reaction of Wittig reaction, hydrolysis and enzymatic hydrolysis. The total yield was 71.2%. The structure was characterized by ^1H NMR and IR.
出处
《合成化学》
CAS
CSCD
北大核心
2010年第1期134-136,共3页
Chinese Journal of Synthetic Chemistry