[EN] PROCESS FOR THE PREPARATION OF 5-(2-AMINO-PYRIMIDIN-4-YL)-2-ARYL-1H-PYRROLE-3-CARBOXAMIDES<br/>[FR] PROCÉDÉ POUR L'ÉLABORATION DE 5-(2-AMINO-PYRIMIDIN-4-YL)-2-ARYL-1H-PYRROLE-3-CARBOXAMIDES
申请人:NERVIANO MEDICAL SCIENCES SRL
公开号:WO2011054714A1
公开(公告)日:2011-05-12
The invention relates to a process for the preparation of 5-(2-amino-pyrimidin-4-yl)-2-aryl-1H-pyrrole-3- carboxamides and to the useful intermediate compounds of such process. The process allows to obtain the desired products in high yields and purity. The synthesis is starting from the coupling of an acetal with a beta-ketoester; the resultant compound is acetylated and then reacted with a dialkyl acetal of N,N-dimethylformamide to give an intermediate which is cyclized to 5-(2-amino-pyrimidin-4-yl)-2-aryl-1H-pyrrole-3-carboxylic ester; the carboxylic ester is then hydrolyzed and the resultant carboxylic acid is finally condensed with an appropriate form of ammonia to give the desired carboxamide. The compounds prepared according to the process of the invention are endowed with protein kinase inhibiting activity and, more particularly, Cdc7 or Cdc7/Cdks inhibiting activity. The compounds are useful in the treatment of a variety of cancers, cell proliferative disorders and diseases associated with protein kinases.
该发明涉及一种制备5-(2-氨基嘧啶-4-基)-2-芳基-1H-吡咯-3-甲酰胺及其有用中间化合物的过程。该过程能够以高产率和纯度获得所需产品。合成从醚与β-酮酸酯的偶联开始;得到的化合物经乙酰化,然后与N,N-二甲基甲酰胺的二烷基醚反应,形成一个中间体,该中间体环化为5-(2-氨基嘧啶-4-基)-2-芳基-1H-吡咯-3-羧酸酯;然后羧酸酯被水解,生成的羧酸最终与适当形式的氨反应,得到所需的羧酰胺。根据该发明的方法制备的化合物具有蛋白激酶抑制活性,更具体地说,具有Cdc7或Cdc7/Cdks抑制活性。这些化合物在治疗各种癌症、细胞增殖紊乱以及与蛋白激酶相关的疾病方面具有用处。