申请人:Merrell Dow Pharmaceuticals Inc.
公开号:US05182399A1
公开(公告)日:1993-01-26
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 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; and the pharmaceutically acceptable acid addition salts thereof.
本发明涉及一种新型的哌啶基苯并咪唑类抗组胺药物,其可由以下公式描述:##STR1## 其中,Y由CO或CHOH表示;m为1至2的整数;R由C.sub.1-4烷基,C.sub.1-4烷氧基,卤素,羟基和氢表示;X由氢,COOR.sub.2(其中,R.sub.2表示C.sub.1-4烷基,或具有以下公式的烷基苯基基团:##STR2## 其中,T由CHOH,CO,O或直接键表示;R.sub.1由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表示;n为1至5的整数;以及其药学上可接受的酸盐。