The present invention encompasses structures of the formula: ##STR1## or the pharmaceutically acceptable non-toxic salts thereof wherein: ##STR2## wherein: W represents substituted or unsubstituted phenyl; X is hydrogen, hydroxy or lower alkyl; T is hydrogen, halogen, hydroxy, nitro, amino or alkyl; R.sub.3 is hydrogen or an organic group; R.sub.4 is hydrogen or substituted or unsubstituted organic substituent; R.sub.5 and R.sub.6 represent organic, and inorganic substituents; and n is 1, 2, 3, or 4, which compounds are highly selective agonists, antagonists or inverse agonists for GABAa brain receptors or prodrugs of agonists, antagonists or inverse agonists for GABAa brain receptors. These compounds are useful in the diagnosis and treatment of anxiety, sleep and seizure disorders, overdose with benzodiazepine drugs and for enhancement of memory.
本发明涵盖以下结构或其药学上可接受的非毒性盐:##STR1## 其中:##STR2## 其中:W代表取代或未取代的苯基;X代表氢、羟基或较低的烷基;T代表氢、卤素、羟基、硝基、
氨基或烷基;R.sub.3代表氢或有机基团;R.sub.4代表氢或取代或未取代的有机取代基;R.sub.5和R.sub.6代表有机和无机取代基;n为1、2、3或4。这些化合物是高度选择性的
GABAa脑受体激动剂、拮抗剂或反向激动剂,或者是
GABAa脑受体激动剂、拮抗剂或反向激动剂的前药。这些化合物在焦虑、睡眠和癫痫障碍、苯二氮平类药物过量和增强记忆方面的诊断和治疗中是有用的。