7-氨基去乙酰氧基头孢烷酸合成工艺改进
7-氨基去乙酰氧基头孢烷酸,,7-氨基去乙酰氧基头孢烷酸;合成,实验部分,2结果与讨论
摘 要 为了降低7-氨基去乙酰氧基头孢烷酸(7-ADCA)的生产成本,对7-ADCA合成工艺中的扩环重排及酶解反应进行优化,收率分别为91.6%、89.7%,产品质量好。本工艺既可简化操作,降低成本,又可减少生产中造成的环境污染。关键词 7-氨基去乙酰氧基头孢烷酸;合成
Modification of the preparation of 7-amino desacetoxycephalosporin acid
LI Kuiying,FENG Shengxi
(Institute of Synthetic Medicine,Guangzhou Baiyunshan Chemical Pharmaceutical Factory,Guangzhou,Guangdong 510515)
Abstract An improved process of the preparation of 7-aminodesacetoxycephalosporin acid was described. The ring expansion rearrangement and enzymatic splitting step was modified. The yields of these two steps were 91.6% and 89.7% respectively. The new method process could simplify the procedure,reduce the cost and decreases the environment pollution compared with the old method.
Key words 7-aminodesacetoxycephalos porin acid; synthesis
CLC number R914 Article ID:1006-8783(2003)03-0247-02 Document code:A
7-氨基去乙酰氧基头孢烷酸(7-ADCA,1)是制备半合成抗生素头孢氨苄、头孢拉定、头孢羟氨苄、头孢他美酯等头孢类产品的主要中间体 ......
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