Process for the preparation of sartan derivatives and intermediates useful in such process
申请人:KRKA, d.d. Novo mesto
公开号:US07868180B2
公开(公告)日:2011-01-11
The invention provides a process for the preparation of a sartan derivative of formula (I) (formula as filed in paper form) (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), (formula as filed in paper form) (VI) wherein (part of formula as filed in paper form), 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), (formula as filed in paper form) (V) wherein M is an alkali metal or an NR4R5R6R7 group; and of formula (II) (formula as filed in paper form) (II).
本发明提供了一种制备式(I)(纸张形式中的公式)的沙坦衍生物或其药学上可接受的盐的方法,其中取代基的含义如说明中所示,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)(纸张形式中的公式)的对位卤苯甲基-1H-咪唑衍生物反应,其中(公式的一部分如纸张形式中所述),X,Y,R1和R2如上所定义,Z为I,Br或Cl。本发明还提供了新的中间体,包括式(V)(纸张形式中的公式),其中M是碱金属或NR4R5R6R7基团;和式(II)(纸张形式中的公式)。