申请人:Kanebo, Ltd.
公开号:US04430343A1
公开(公告)日:1984-02-07
Novel benzimidazole derivatives of the formula: ##STR1## wherein R.sup.1 is an alkyl group having 1 to 3 carbon atoms, allyl group, propargyl group, or phenyl group; R.sup.2 is hydrogen atom or an alkyl group having 1 to 3 carbon atoms; and n is 2 or 3, or pharmaceutically acceptable acid addition salts thereof, which have excellent antihistaminic activities and are useful as antiallergics for various allergic diseases, and a process for the preparation thereof, and an antihistaminic composition containing the compound as an active ingredient.
化合物的式子为:##STR1## 其中,R1是1到3个碳原子的烷基,烯丙基,炔丙基或苯基;R2是氢原子或1到3个碳原子的烷基;n为2或3,或其药学上可接受的酸盐。这些化合物具有优异的抗组胺活性,可用作各种过敏疾病的抗过敏药物,并提供一种制备这些化合物的方法和包含该化合物作为活性成分的抗组胺组合物。