申请人:Kankan Narayanrao Rajendra
公开号:US20060173182A1
公开(公告)日:2006-08-03
A process of preparing imatinib, either as the free base or as an acid addition salt, which process comprises reacting N-(2-methyl-5-aminophenyl-4-(3-pyridyl)-2-pyrimidine amine of formula (II) with a 4-(4-methyl-piperazino methyl)benzoyl halide of formula (III) in the presence of an inert organic solvent, so as to yield a hydrohalide salt of imatinib formula (I) where n represents 1, 2 or 3 and Hal represents bromo, chloro, fluoro or iodo, either in anhydrous or hydrated form, which can as desired optionally be further converted either to the free base or a further acid addition salt. The present invention is also concerned with imatinib prepared according to the above process.
制备伊马替尼的过程,可以是作为自由碱或酸盐的形式,该过程包括在惰性有机溶剂的存在下,将式(II)的N-(2-甲基-5-氨基苯基-4-(3-吡啶基)-2-嘧啶胺与式(III)的4-(4-甲基-哌嗪甲基)苯甲酰卤化物反应,从而产生伊马替尼的氢卤化盐,其中n代表1、2或3,Hal代表溴、氯、氟或碘,可以是无水或水合形式,根据需要还可以进一步转化为自由碱或进一步的酸盐。本发明还涉及根据上述过程制备的伊马替尼。