申请人:SUZHOU MIRACPHARMA TECHNOLOGY CO., LTD.
公开号:US20160264584A1
公开(公告)日:2016-09-15
Provided is a method for preparing Ibrutibin (I), and steps of preparing same comprise: 4-benzyloxybenzoyl chloride (II) is used as a raw material, condensation and methoxidation reactions occur among 4-benzyloxybenzoyl chloride (II), malononitrile, and dimethyl sulfate to generate 4-benzyloxyphenyl(methoxy)vinylidenedicyanomethane (III), pyrazole cyclization occurs between the intermediate (III) and 1-(3R-hydrazino-1-piperidino)-2-propylene-1-ketone (IV) to acquire 1-[(3R)-[3-(4-benzyloxyphenyl)-4-nitrile-5 -amino-1H-pyrazole]-1-piperidino]-2 propylene-1-ketone (V), and pyrimidine cyclization occurs between an intermediate (V) and a cyclizing agent to prepare Ibrutinib (I). In the preparation method, the raw material is readily available, and the process is simple, economical, environmentally friendly, and is suitable for industrial production.
提供了一种制备依达替尼(I)的方法,制备步骤包括:以4-苄氧基苯甲酰氯(II)为原料,4-苄氧基苯甲酰氯(II)、马来酸二腈和硫酸二甲酯之间发生缩合和甲氧化反应生成4-苄氧基苯基(甲氧基)乙烯基二氰甲烷(III),中间体(III)与1-(3R-咪唑基-1-哌啶基)-2-丙烯-1-酮(IV)之间发生吡唑环化反应,得到1-[(3R)-[3-(4-苄氧基苯基)-4-腈基-5-氨基-1H-吡唑基]-1-哌啶基]-2-丙烯-1-酮(V),中间体(V)与环化剂之间发生嘧啶环化反应制备依达替尼(I)。在制备方法中,原料易得,工艺简单,经济环保,适合工业生产。