申请人:——
公开号:US20040220409A1
公开(公告)日:2004-11-04
An improved, highly efficient method for the preparation of flecainide acetate (I) or other pharmaceutically acceptable salts of flecainide. The method involves a technique for preparing the staring material 1,4-bis (2,2,2-trifuoroethoxy) benzene (III) in high yields by reacting 4-fluoro-1-bromobenzene (VI) with TFE in the presence of a base and a copper-containing catalyst.
这是一种改进的、高效的方法,用于制备flecainide醋酸盐(I)或其他药用可接受的flecainide盐。该方法涉及一种技术,通过在碱和含铜催化剂的存在下将4-氟-1-溴苯(VI)与三氟乙氧基苯(III)反应,高产率地制备起始材料1,4-双(2,2,2-三氟乙氧基)苯(III)。