申请人:Merrell Dow Pharmaceuticals Inc.
公开号:US04908372A1
公开(公告)日:1990-03-13
The present invention is directed to a new class of piperidinyl benzimidazole antihistamines which can be described by the following formula: ##STR1## wherein Y is represented by CO or CHOH; m is an integer from 1 to 2; R is represented by C.sub.1-4 alkyl, C.sub.1-4 alkoxy, halogen, hydroxy and hydrogen, X is represented by hydrogen, COOR.sub.2 in which R.sub.2 is represented by a C.sub.1-4 alkyl, or X is an alkylene phenyl radical of the formula: ##STR2## wherein T is represented by CHOH, CO, O, or a direct bond; R.sub.1 is represented by C.sub.1-4 alkyl, C.sub.1-4 alkoxy, halogen, hydroxy, 2,2-dimethyl ethanoic acid and hydrogen; n is an integer from 1 to 5; or a pharmaceutically acceptable acid addition salt thereof.
本发明涉及一种新型的哌啶基苯并咪唑类抗组胺药物,其可以由以下公式描述:##STR1## 其中,Y代表CO或CHOH;m为1至2的整数;R代表C.sub.1-4烷基,C.sub.1-4烷氧基,卤素,羟基和氢原子;X代表氢原子,COOR.sub.2,其中R.sub.2代表C.sub.1-4烷基,或X为以下式子的烷基苯基基团:##STR2## 其中,T代表CHOH,CO,O或直接键;R.sub.1代表C.sub.1-4烷基,C.sub.1-4烷氧基,卤素,羟基,2,2-二甲基乙酸和氢原子;n为1至5的整数;或其药学上可接受的酸加盐。