申请人:Dainippon Pharmaceutical Co., Ltd.
公开号:US05210266A1
公开(公告)日:1993-05-11
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.
公式为:##STR1##的新型N-取代巯基丙酰胺衍生物,其中R.sub.1是巯基或可在生物体内剪断时转化为巯基的基团,W是氢原子,烷基或芳基烷基,R.sub.2是芳基,可选地具有取代基,是可选的具有取代基的杂环基,或是可选的具有取代基的烷基,X是环烷基,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是羧基或可在生物体内剪断时转化为羧基的基团,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体溶液,具有优异的脑啡肽酶抑制活性,可用于治疗轻至中度疼痛的药物组合物,以及制备这些化合物的方法。