申请人:Xu Xuenong
公开号:US20160311777A1
公开(公告)日:2016-10-27
Disclosed in the present invention is a method for preparing nilotinib intermediate 3-(4-methyl-1H-imidazol-1-yl)-5trifluoromethyl phenylamine (I). The method comprises the following steps: taking trifluorotoluene as an initial material, and preparing the nilotinib intermediate (I) by nitration, bromization, condensation and reduction successively Compared with the prior art, the preparation method has the following advantages: a relatively high yield, the raw materials are easily obtained, a concise process and few side reactions, and is adapted to industrial production, so the development of an economic technology of the bulk drug is pro moted.
本发明公开了一种制备尼洛替尼中间体3-(4-甲基-1H-咪唑-1-基)-5-三氟甲基苯胺(I)的方法。该方法包括以下步骤:以三氟甲基甲苯为原料,通过硝化、溴化、缩合和还原依次制备尼洛替尼中间体(I)。与现有技术相比,该制备方法具有以下优点:产率相对较高,原材料易获得,工艺简洁,副反应少,适合工业生产,促进了大宗药物的经济技术发展。