申请人:Naddaka Vladimir
公开号:US20070135640A1
公开(公告)日:2007-06-14
The present invention provides a process for preparing 4-amino-1-isobutyl-1H-imidazo[4,5-c]quinoline (Imiquimod) of formula (I). The process comprises heating 4-chloro-1-isobutyl-1H-imidazo[4,5-c]quinoline of formula (II) with formamide, and optionally with bubbling of gaseous ammonia to afford Imiquimod of formula (I). According to the present invention, by using this process and novel purification methods, essentially as described herein, highly pure Imiquimod is obtained.
本发明提供了一种制备式为(I)的4-氨基-1-异丁基-1H-咪唑并[4,5-c]喹啉(伊米曲莫德)的方法。该方法包括将式为(II)的4-氯-1-异丁基-1H-咪唑并[4,5-c]喹啉与甲酰胺加热,可选地加入氨气使其气化,从而得到式为(I)的伊米曲莫德。根据本发明,通过使用本文所述的该方法和新的纯化方法,可以获得高度纯净的伊米曲莫德。