申请人:Kanebo, Ltd.
公开号:US04603130A1
公开(公告)日:1986-07-29
Novel benzimidazole derivatives of the formula: ##STR1## wherein R.sup.1 is a lower alkyl group, a lower alkenyl group or a lower alkynyl group, R.sup.2 is hydrogen atom, a lower alkyl group or a lower hydroxyalkyl group, and n is 2 or 3, or a pharmaceutically acceptable acid addition salt thereof, which have potent antihistaminic activity with less toxicity and hence are useful as an antihistaminics, and a process for the preparation of the compounds, and a pharmaceutical composition useful as antihistaminics containing the compound as an essential active ingredient.
化合物的式子为:##STR1## 其中R.sup.1是较低的烷基、较低的烯基或较低的炔基,R.sup.2是氢原子、较低的烷基或较低的羟基烷基,n为2或3,或其药学上可接受的酸加成盐。这些化合物具有强效的抗组胺活性,毒性较低,因此可用作抗组胺药物,并提供一种制备该化合物的方法,以及一种包含该化合物作为必要活性成分的抗组胺药物组合物。