申请人:Ajinomoto Co., Inc.
公开号:US04971993A1
公开(公告)日:1990-11-20
There are disclosed dipeptide derivatives represented by the general formula: ##STR1## wherein R.sup.1 is a radical selected from the group consisting of alkyl, aralkyl and aryl groups optionally containing one or more substituent groups, R.sup.2 is a radical selected from the group consisting of hydrogen atoms and alkyl, aralkyl and aryl groups optionally containing one or more substituent groups, R.sup.3 is a radical selected from the group consisting of hydrogen atoms and alkyl, aralkyl and aryl groups optionally containing one or more substituent groups, R.sup.4 is a radical selected from the group consisting of hydrogen atoms and alkyl, aralkyl and aryl groups optionally containing one or more substituent groups, and R.sup.5 is a radical selected from the group consisting of hydroxyl, amino, hydroxyamino, alkyloxy, aralkyloxy, aryloxy, alkylamino, aralkylamino, arylamino, alkyloxyamino, aralkyloxyamino, aryloxyamino, acylamino and sulfonylamino groups, which alkyloxy, aralkyloxy and aryloxy groups optionally containing one or more substituent groups; wherein R.sup.3 may be combined with R.sup.2 or R.sup.4 to form an alkylene bridge optionally containing one or more oxygen atoms, sulfur atoms and nitrogen atoms and optionally containing one or more substituent groups. However, certain dipeptide derivatives within the above general formula are excluded from the invention. The dipeptide derivatives are useful for the treatment of hypertension.
本发明公开了一种二肽衍生物,其通式为:##STR1## 其中,R.sup.1是从烷基,芳基烷基和芳基组成的基团中选择的基团,可选地含有一个或多个取代基团;R.sup.2是从氢原子和烷基,芳基烷基和芳基组成的基团中选择的基团,可选地含有一个或多个取代基团;R.sup.3是从氢原子和烷基,芳基烷基和芳基组成的基团中选择的基团,可选地含有一个或多个取代基团;R.sup.4是从氢原子和烷基,芳基烷基和芳基组成的基团中选择的基团,可选地含有一个或多个取代基团;R.sup.5是从羟基,氨基,羟氨基,烷氧基,芳基烷氧基,芳氧基,烷基氨基,芳基烷基氨基,芳基氨基,烷氧基氨基,芳基烷氧基氨基,芳氧基氨基,酰基氨基和磺酰基氨基组成的基团中选择的基团,其中,烷氧基,芳基烷氧基和芳氧基基团可选地含有一个或多个取代基团;其中,R.sup.3可以与R.sup.2或R.sup.4结合形成一个烷基桥,可选地含有一个或多个氧原子,硫原子和氮原子,并可选地含有一个或多个取代基团。然而,上述通式中的某些二肽衍生物被排除在本发明之外。这些二肽衍生物对高血压的治疗有用。