Preparation of 1H-imidazo [4,5-C] quinolin-4-amines via novel 1H-imidazo [4,5-c] quinolin-4-cyano and 1H-imidazo [4,5-c] quinolin-4-carboxamide intermediates
申请人:——
公开号:US20040063743A1
公开(公告)日:2004-04-01
The invention relates to a process for the synthesis of 1H-imidazo[4,5-c] quinoline 4-cyano and 1H-imidazo[4,5-c] quinoline 4-carboxamide intermediates useful in preparing 1H-imidazo[4,5-C] quinoline 4-amines, a process for preparing 1H-imidazo[4,5-C] quinoline 4-amines using such intermediates; and, to the 1H-imidazo[4,5-c] quinoline 4-cyano and 1H-imidazo[4,5-c] quinoline 4-carboxamide intermediates. More particularly, the invention relates to a process for the preparation of 1-isobutyl-1H-imidazo[4,5-C] quinoline 4-amine (Imiquimod) using two intermediates, 1-isobutyl-1H-imidazo[4,5-c] quinoline 4-cyano and 1-isobutyl-1H-imidazo[4,5-c] quinoline 4-carboxamide, and to the said intermediates.
本发明涉及一种合成1H-咪唑[4,5-c]喹啉4-腈和1H-咪唑[4,5-c]喹啉4-羧酰胺中间体的方法,该中间体在制备1H-咪唑[4,5-C]喹啉4-胺时有用;以及使用这种中间体制备1H-咪唑[4,5-C]喹啉4-胺的方法;以及1H-咪唑[4,5-c]喹啉4-腈和1H-咪唑[4,5-c]喹啉4-羧酰胺中间体。更具体地,本发明涉及使用两种中间体1-异丁基-1H-咪唑[4,5-C]喹啉4-腈和1-异丁基-1H-咪唑[4,5-c]喹啉4-羧酰胺制备1-异丁基-1H-咪唑[4,5-C]喹啉4-胺(Imiquimod)的方法,以及这些中间体。