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.
新型苯并咪唑衍生物的化学式:##STR1##其中R.sup.1是具有1至3个碳原子的烷基基团、烯丙基团、丙炔基团或苯基团;R.sup.2是氢原子或具有1至3个碳原子的烷基基团;n为2或3,或其药学上可接受的酸盐,具有出色的抗组胺活性,可用作各种过敏性疾病的抗过敏药物,以及其制备方法和含有该化合物作为活性成分的抗组胺药物组合物。