A process for the preparation of sartan derivates and intermediates useful in such process
申请人:KRKA, D.D., Novo Mesto
公开号:EP1764365A1
公开(公告)日:2007-03-21
The invention provides a process for the preparation of a sartan derivative of formula (I)
wherein the substituents have the meaning indicated in the description, or a pharmaceutically acceptable salt thereof, comprising reacting 2-cyanophenylboronic acid or a derivative thereof with a p-halobenzyl-1H-imidazole derivative of formula (VI),
wherein , X, Y, R1 and R2 are as defined above, and Z is I, Br or Cl, in the presence of a transition metal catalyst and an inorganic or organic base. The invention also provides new intermediates of formula (V),
wherein M is an alkali metal or an NR4R5R6R7 group; and
of formula (II)
该发明提供了一种制备式(I)的沙坦衍生物的过程,其中取代基具有描述中指示的含义,或其药学上可接受的盐,包括在过渡金属催化剂和无机或有机碱存在下,将2-氰基苯硼酸或其衍生物与式(VI)的对卤苄基-1H-咪唑衍生物反应,其中X、Y、R1和R2如上所定义,Z为I、Br或Cl。该发明还提供了式(V)的新中间体,其中M是碱金属或NR4R5R6R7基团;和式(II)。