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.
该专利描述了一种新型的四氢-β-咔啉衍生物,其化学式为:##STR1## 其中R.sup.1为羧基、较低的烷氧羰基、氨基甲酰基、N,N-二较低烷基氨基甲酰基、N-(苯基取代的较低烷基亚氨基)甲酰基、[N,N-二(较低烷基)氨基]-较低烷基,或含氮的单环杂环基团;R.sup.2为氢原子、较低的烷基,或羟基较低烷基基团,或R.sup.2与R.sup.1结合形成一个基团:--CO--O--CH.sub.2 --;R.sup.3为氢原子、较低的烷基、苯基较低烷基,或一个基团:--CSS--R.sup.4;R.sup.4为氢原子、烷基,或一个基团:--(CH.sub.2).sub.n Y.sup.1;n为0、1或2,Y.sup.1为较低烯基、苯基取代的较低烯基、N,N-二(较低烷基)氨基、较低烷基硫醇基、较低的烷氧羰基、苯甲酰基、萘基、环烷基、单环杂环基团,或取代或未取代的苯基,这些化合物对缓解、治愈和预防肝损伤具有出色的活性,并可用作治疗或预防肝病的药物,以及其制备方法和含有上述化合物作为活性成分的药物组合物。