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.
通用公式表示的已披露二肽衍生物,其中R.sup.1是从包含烷基、芳基和取代基的基团中选择的基团,R.sup.2是从包含氢原子和烷基、芳基和取代基的基团中选择的基团,R.sup.3是从包含氢原子和烷基、芳基和取代基的基团中选择的基团,R.sup.4是从包含氢原子和烷基、芳基和取代基的基团中选择的基团,R.sup.5是从包含羟基、氨基、羟氨基、烷氧基、芳基氧基、芳基氧基、烷基氨基、芳基氨基、芳基氨基、烷氧基氨基、芳基氧基氨基、芳基氧基氨基、酰胺基和磺酰胺基的基团中选择的基团,其中烷氧基、芳基氧基和芳基氧基基团可选地包含一个或多个取代基;其中R.sup.3可以与R.sup.2或R.sup.4结合形成一个烷基桥,可选地包含一个或多个氧原子、硫原子和氮原子,并可选地包含一个或多个取代基。然而,上述通用公式中的某些二肽衍生物不属于本发明。这些二肽衍生物对治疗高血压有用。