The present invention relates to a process for the preparation of pure irinotecan or salts thereof, and a process for the preparation of intermediate compound 7-ethyl-10-hydroxycamptothecin.
本发明涉及一种制备纯伊立替康或其盐的方法,以及制备中间化合物7-乙基-10-羟基喜树碱的方法。
Method for the synthesis of irinotecan
申请人:Synbias Pharma AG
公开号:EP2881396A1
公开(公告)日:2015-06-10
The present invention relates to a method for the synthesis of 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin (i.e. iriniotecan), comprising: (a) preparing 10-[4-(1-piperidino)-1-piperidino]carbonyloxycamptotecin; and (b) selectively ethylating the compound of step (a) at the 7-position, thus resulting in the preparation of 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin. The present invention is further directed to a method for the synthesis of 10-[4-(1-piperidino)-1-piperidino]carbonyloxycamptothecin (i.e. 7-des-ethyl-irinotecan) which is used as an intermediate in the synthesis of irinotecan.
The disclosure includes hydroxamic compounds of Formula I: (Formula I) wherein Z, L, R
1
, R
2
, and R
3
are defined herein. Also disclosed is a method for treating a neoplastic disease or an immune disease with these compounds.