Compounds of the general formula
wherein X' is a group R'O and X2 is a group R2O, or one of X' and X2 is a group R4 and the other is hydroxy, wherein,
R', R2, R3 and R4 are the same or different and each represent hydrogen or a C1-4 alkyl group;
Ph is a phenyl group, optionally substituted by one or more groups independently selected from halo nitro; and
Y is a group of formula
or a group of formula
or a group of formula
and basic salts thereof. These compounds have an advantageous enkephalinase inhibitory activity which renders the compounds useful in medical therapy, eg. to prolong and or potentiate in a mammal, the effects of endogenous or exogenous enkephalins. The latter includes synthetic enkephalin analogues.
通式如下的化合物
其中 X'为基团 R'O,X2 为基团 R2O,或 X'和 X2 中的一个为基团 R4,另一个为羟基,其中
R'、R2、R3 和 R4 相同或不同,各自代表氢或 C1-4 烷基;
Ph 是苯基,任选被一个或多个独立选自卤代硝基的基团取代;以及
Y 是一个式基团
或一个式基团
或一个式基团
及其碱式盐。这些化合物具有良好的
脑啡肽酶抑制活性,可用于医学治疗,例如延长或增强哺乳动物体内外源性
脑啡肽的作用。后者包括合成的
脑啡肽类似物。