Synthesis and central nervous system actions of thyrotropin-releasing hormone analog containing a dihydroorotic acid moiety
作者:Mamoru Suzuki、Hiroshi Sugano、Kazuo Matsumoto、Michio Yamamura、Ryuichi Ishida
DOI:10.1021/jm00170a014
日期:1990.8
A series of thyrotropin-releasing hormone (TRH) analogues in which the pyroglutamic acid residue was replaced by (S)-4,5-dihydroorotic acid (Dio-OH) and the related derivatives were prepared. Their central nervous system actions based on spontaneous locomotor activity, antagonistic effect on reserpine-induced hypothermia, and antagonistic effect on pentobarbital anesthesia were evaluated and the structure-activity
制备了一系列促甲状腺激素释放激素(TRH)类似物,其中焦谷氨酸残基被(S)-4,5-二氢乳清酸(Dio-OH)取代,并且相关衍生物也存在。基于自发运动能力,对利血平诱导的体温过低的拮抗作用以及对戊巴比妥麻醉的拮抗作用,评估了它们的中枢神经系统作用,并讨论了其构效关系。其中,(1-甲基-((S)-4,5-二氢原基))-L-组氨酸-L-脯氨酰胺(14b)显示出最有效的活性,比TRH的活性高30-90倍。此外,14b的促甲状腺素释放活性比TRH弱约50倍,因此选择了化合物14b(TA-0910)作为有效的候选药物。