申请人:——
公开号:US04007168A1
公开(公告)日:1977-02-08
The process consists in reacting 2-oxazolidinone or 5-methyl-2-oxazolidinone, with trimethylchlorosilane or dimethylchlorosilane, or triethylchlorosilane, in the presence of an organic tertiary base acting as a hydrogen chloride removal agent, the resulting compound is reacted with 6-APA, 7-ACA or 7-ADCA; the resulting compound is reacted with an activated carboxylic acid to obtain an N-acyl derivative, which, when treated with water or alcohols gives a penicillin or cephalosporin.
该过程包括将
2-噁唑烷酮或5-甲基-
2-噁唑烷酮与三甲
氯硅烷或二甲
氯硅烷或三乙基
氯硅烷在有机三级碱的存在下反应,作为
氯化氢去除剂,所得化合物与6-APA、
7-ACA或
7-ADCA反应;所得化合物与活性
羧酸反应以获得N-酰基衍
生物,当与
水或醇处理时,可得到
青霉素或
头孢菌素。