Disclosed are compounds of the formula ##STR1## or the pharmaceutically acceptable non-toxic salts thereof wherein: R is hydrogen, alkyl, or(un)substituted alkoxy or amino; and W is (un)substituted alkyl, aryl, or heteroaryl, 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. The compounds of the invention are useful in the diagnosis and treatment of anxiety, Down Syndrome, sleep, cognitive and seizure disorders, and overdose with benzodiazepine drugs and for enhancement of alertness.
本发明揭示了以下化合物的结构公式:##STR1## 或其药学上可接受的非毒性盐,其中:R表示氢、烷基或(未)取代的烷氧基或
氨基;W表示(未)取代的烷基、芳基或杂环芳基,这些化合物是高度选择性的
GABAa脑受体的激动剂、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。本发明的化合物在焦虑、唐氏综合症、睡眠、认知和癫痫障碍、苯二氮卓类药物过量和增强警觉性方面具有诊断和治疗的用途。