skeleton of almorexant by appropriately substituted imidazoles afforded novel 1-chloro-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine derivatives as potent dual orexin receptor antagonists. We describe in this Letter our efforts to further optimize the potency and brain penetration of these derivatives by fine-tuning of the pivotal phenethyl motif, and we comment on the sleep-promoting activity of selected compounds
用适当取代的
咪唑代替almorexant核心骨架中的二
甲氧基苯基部分,可提供新的1-
氯-5,6,7,8-四氢
咪唑并[1,5- a ]
吡嗪衍
生物,作为有效的双orexin受体拮抗剂。我们在这封信中描述了我们通过微调枢轴苯乙基基序进一步优化这些衍
生物的功效和大脑渗透的努力,并评论了大鼠脑电图(E
EG)模型中所选化合物的睡眠促进活性。