申请人:Dainippon Pharmaceutical Co., Ltd.
公开号:EP0318859A2
公开(公告)日:1989-06-07
Novel N-substituted mercaptopropanamide derivatives of the formula:
wherein R₁ is mercapto or a group convertible into mercapto when cleaved within the biobody, W is hydrogen atom, an alkyl or an aralkyl, R₂ 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 R₃ 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.
式中的新型 N-取代巯基丙酰胺衍生物:
其中 R₁ 是巯基或在生物体内裂解时可转化为巯基的基团,W 是氢原子、烷基或芳烷基,R₂ 是芳基(可选择具有取代基)、杂环基(可选择具有取代基)或烷基(可选择具有取代基),X 是环亚烷基、亚环烷基或亚苯基(可选择具有取代基)或可选择与其他环融合、和 R₃ 是羧基或在生物体内裂解时可转化为羧基的基团,或其药学上可接受的盐,以及所述 N-取代巯基丙酰胺衍生物与氨基酸的固溶体,它们具有优异的脑啡肽酶抑制活性,可用于治疗轻度至中度疼痛,以及含有所述化合物作为活性成分的药物组合物,以及制备这些化合物的工艺。