The present patent application discloses compounds having the formula ##STR1## or a pharmaceutically acceptable salt thereof or an oxide thereof wherein R.sup.3 is ##STR2## wherein A, B and D each is CH, or one or two of A, B and D is N and the others are CH; R.sup.11 is phenyl, benzimidazolyl, or monocyclic heteroaryl, all of which may be substituted one or more times with substituents selected from alkyl, alkoxy, halogen, CF.sub.3, amino, nitro, cyano, acylamino, acyl, phenyl and monocyclic heteroaryl; one of R.sup.6 and R.sup.7 is hydrogen and the other is --CR'.dbd.NOR", wherein R' and R" each independently are hydrogen, alkyl, alkenyl, alkynyl or phenyl. The compounds are useful for the treartment of various central nervous system disorders such as epilepsy and other convulsive disorders, anxiety, sleep disorders and memory disorders.
本专利申请公开了具有以下结构式的化合物:##STR1##或其药学上可接受的盐或氧化物,其中R.sup.3是##STR2##其中A、B和D分别是CH,或者A、B和D中的一个或两个是N,而其他的是CH;R.sup.11是苯基、
苯并咪唑基或单环杂环基,所有这些基团都可以被选自烷基、烷氧基、卤素、CF.sub.3、
氨基、硝基、
氰基、酰胺基、酰基、苯基和单环杂环基的取代基所取代;R.sup.6和R.sup.7中的一个是氢,另一个是--CR'.dbd.NOR",其中R'和R"各自独立地是氢、烷基、烯基、炔基或苯基。这些化合物对于治疗各种中枢神经系统疾病,例如癫痫和其他惊厥性疾病、焦虑症、睡眠障碍和记忆障碍非常有用。