申请人:Dainippon Pharmaceutical Co., Ltd.
公开号:US05179125A1
公开(公告)日:1993-01-12
Novel N-substituted mercaptopropanamide derivatives of the formula: ##STR1## wherein R.sub.1 is mercapto or a group convertible into mercapto when cleaved within the biobody, W is hydrogen atom, an alkyl or an aralkyl, R.sub.2 is an aryl which may optionally have substituent(s), a heterocyclic group which may optionally have substituent(s), or an alkyl which may optionally have substituent(s), X is a cycloalkylene, a cycloalkylidene, or a phenylene which may optionally have substituent(s) or may optionally be fused with other ring, and R.sub.3 is carboxyl or a group convertible into carboxyl when cleaved within the biobody, or a pharmaceutically acceptable salt thereof, and a solid solution of said N-substituted mercaptopropanamide derivative with an amino acid, which have excellent enkephalinase inhibitory activity and are useful for the treatment of mild to moderate pain, and a pharmaceutical composition containing said compounds as an active ingredient, and processes for preparing these compounds.
化合物的式子为:##STR1## 其中,R.sub.1为巯基或在生物体内裂解后可转化为巯基的基团,W为氢原子,烷基或芳基烷基,R.sub.2为芳基,可选地具有取代基,杂环基,可选地具有取代基,或烷基,可选地具有取代基,X为环烷基,环烷基亚甲基或苯基,可选地具有取代基或可选地与其他环融合,R.sub.3为羧基或在生物体内裂解后可转化为羧基的基团,或其药学上可接受的盐,以及该N-取代巯基丙酰胺衍生物与氨基酸的固体溶液,具有优异的脑啡肽酶抑制活性,可用于治疗轻度到中度疼痛的药物组合物,并且包含该化合物作为活性成分的制药组合物和制备这些化合物的过程。