申请人:AVENTIS PHARMA S.A.
公开号:US20020045756A1
公开(公告)日:2002-04-18
The present invention relates to a novel process for preparation of camptothecin and of its derivatives by convergent synthesis starting from a 3-(aminomethyl)quinoline derivative and 5-hydroxy-5-ethyl-6-oxo-5,6-dihydropyrancarboxylic acid and to the intermediates obtained.
本发明涉及从3-(
氨甲基)
喹啉衍
生物和5-羟基-5-乙基-6-氧代-5,6-二氢
吡喃
羧酸开始通过汇聚合成制备
喜树碱及其衍
生物的新工艺,以及所得到的中间体。