Compounds of the formula
wherein
Ris hydrogen, hydroxy, or aryl lower alkyloxy;
Xis hydrogen;
Yis hydroxy or hydrogen;
or both X and Y taken together are oxygen;
Zis aryl lower alkyl; and
mis an integer from 1 to 4
or a diastereomer or an enantiomer thereof, except, the R,R diastereomer of formula I, wherein X is hydrogen, Y is hydroxy, R is benzyloxy, Z is benzyl, and m is 1, or pharmaceutically acceptable salts thereof, reduce adverse effects of toxic injury to central neurons and thus are useful in the treatment of ischemia, stroke, hypoxia and are NMDA receptor antagonists.
式中的化合物
式中
Ris氢、羟基或芳基低级烷氧基;
X为氢
Y为羟基或氢
或 X 和 Y 合起来都是氧;
Z 是芳基低级烷基;和
mis为 1 至 4 的整数
或其非对映异构体或对映体,但式 I 的 R、R 非对映异构体除外,其中 X 为氢,Y 为羟基,R 为苄氧基,Z 为苄基,m 为 1,或其药学上可接受的盐,可减少中枢神经元毒性损伤的不良反应,因此可用于治疗缺血、中风、缺氧,是 N
MDA 受体拮抗剂。