申请人:Tanabe Seiyaku Co., Ltd.
公开号:US04628057A1
公开(公告)日:1986-12-09
Novel tetrahydro-.beta.-carboline derivatives of the formula: ##STR1## wherein R.sup.1 is carboxyl, a lower alkoxycarbonyl, carbamoyl, an N,N-di-lower alkylcarbamoyl, an N-(phenyl-substituted lower alkylidenamino)carbamoyl, a [N,N-di(lower alkyl)amino]-lower alkyl, or a nitrogen-containing monocyclic heterocyclic group; R.sup.2 is hydrogen atom, a lower alkyl, or a hydroxy-lower alkyl group, or R.sup.2 is combined with R.sup.1 to form a group: --CO--O--CH.sub.2 --; R.sup.3 is hydrogen atom, a lower alkyl, a phenyl-lower alkyl, or a group: --CSS--R.sup.4 ; R.sup.4 is hydrogen atom, an alkyl, or a group: --(CH.sub.2).sub.n Y.sup.1 ; n is 0, 1 or 2, Y.sup.1 is a lower alkenyl, a phenyl-substituted lower alkenyl, an N,N-di(lower alkyl)amino, a lower alkylmercapto, a lower alkoxycarbonyl, benzoyl, naphthyl, a cycloalkyl, a monocyclic heterocyclic group, or a substituted or unsubstituted phenyl, which have excellent activities for alleviating, curing and preventing hepatic damages and are useful as a therapeutic or prophylactic agent for hepatic diseases, and processes for the preparation thereof, and a pharmaceutical composition containing the above compound as an active ingredient.
化合物的式子为:##STR1## 其中R.sup.1代表羧基、低碳基甲酰基、氨基甲酰基、N,N-二低碳基氨基甲酰基、N-(苯基取代的低碳基亚胺基)氨基甲酰基、[N,N-二(低碳基)氨基]-低碳基或含氮的单环杂环基;R.sup.2代表氢原子、低碳基或羟基-低碳基基团,或R.sup.2和R.sup.1结合形成一个基团:--CO--O--CH.sub.2 --;R.sup.3代表氢原子、低碳基、苯基-低碳基或基团:--CSS--R.sup.4;R.sup.4代表氢原子、烷基或基团:--(CH.sub.2).sub.n Y.sup.1;n为0、1或2,Y.sup.1是低烯基、苯基取代的低烯基、N,N-二(低碳基)氨基、低碳基硫醇基、低碳基甲氧基甲酰基、苯甲酰基、萘基、环烷基、单环杂环基或取代或未取代的苯基。这些化合物具有显著的缓解、治疗和预防肝损伤的活性,可作为治疗或预防肝病的治疗剂或预防剂,并提供了其制备方法以及含有上述化合物作为活性成分的制药组合物。