申请人:SMITHKLINE BEECHAM PLC
公开号:EP1219620A1
公开(公告)日:2002-07-03
A process for preparing a compound of formula (I):
or a tautomeric form thereof or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable solvate thereof, wherein:
A1 represents a substituted or unsubstituted aromatic heterocyclyl group;
R1 represents a hydrogen atom, an alkyl group, an acyl group, an aralkyl group, wherein the aryl moiety may be substituted or unsubstituted, or a substituted or unsubstituted aryl group;
A2 represents a benzene ring having in total up to five substituents; and
n represents an integer in the range of from 2 to 6,
which process comprises catalytically reducing a compound of formula (II):
wherein A1, R1, A2 and n are as defined in relation to formula (I), characterised in that the reduction reaction is carried out using a hydrogen pressure above 20psi; and thereafter if required forming a pharmaceutically acceptable salt and/or a pharmaceutically acceptable solvate of the compound of formula (I).
制备式(I)化合物的过程:
或其互变异构体或其药学上可接受的盐,或其药学上可接受的溶剂化合物,其中:
A1代表一个取代或未取代的芳香杂环基团;
R1代表氢原子,烷基,酰基,芳基烷基,其中芳基可能是取代或未取代的,或取代或未取代的芳基;
A2代表总共最多有五个取代基的苯环;和
n代表范围在2到6之间的整数,
该过程包括催化还原式(II)化合物:
其中A1,R1,A2和n如与式(I)相关定义,其特征在于还原反应使用高于20psi的氢压进行;然后如有必要形成式(I)化合物的药学上可接受的盐和/或药学上可接受的溶剂化合物。