Synthesis and pharmacology of TRH analogs to separate central nervous action from endocrine activity.
作者:NAOHISA FUKUDA、OSAMU NISHIMURA、MUTSUSHI SHIKATA、CHITOSHI HATANAKA、MASAOMI MIYAMOTO、YOSHIAKI SAJI、RYO NAKAYAMA、MASAHIKO FUJINO、YUJI NAGAWA
DOI:10.1248/cpb.28.1667
日期:——
Various TRH analogs, γ-butyrolactone-γ-carbonyl-His-Pro-NHR, γ-butyrolactone-γ-carbonyl-N3-im-methyl-His-Pro-NHR, 2-ketopiperidine-6-carbonyl-His-Pro-NHR and 3-oxoperhydro-1, 4-thiazine-5-carbonyl-His-Pro-NHR (R=H, methyl, ethyl, n-propyl, n-butyl, n-amyl, n-hexyl, β-phenethyl) were synthesized and pharmacologically tested in the hope of separating the central nervous action from endocrine activity. Among them, γ-butyrolactone-γ-carbonyl-His-Pro-NH2 was found to have potent central nervous actions in antagonizing pentobarbital sleep and in potentiating apomorphine-induced circling in mice, and only nominal TSH-releasing activity in rats.
各种 TRH 类似物、γ-丁内酯-γ-羰基-His-Pro-NHR、γ-丁内酯-γ-羰基-N3-im-甲基-His-Pro-NHR、2-酮哌啶-6-羰基-His-Pro- NHR 和 3-氧代过氢-1, 4-噻嗪-5-羰基-His-Pro-NHR(R=H、甲基、乙基、正丙基、正丁基、正戊基、正己基、β-苯乙基)合成并进行药理学测试,希望将中枢神经作用与内分泌活动分开。其中,γ-丁内酯-γ-羰基-His-Pro-NH2被发现在拮抗戊巴比妥睡眠和增强小鼠阿朴吗啡诱导的循环方面具有有效的中枢神经作用,而在大鼠中仅具有名义上的TSH释放活性。