Synthesis and Evaluation of <i>in Vivo</i> Anti-hypothermic Effect of the N- and C-Terminus Modified Thyrotropin-Releasing Hormone Mimetic: [(4<i>S</i>,5<i>S</i>)-(5-Methyl-2-oxooxazolidine-4-yl)carbonyl]-[3-(thiazol-4-yl)-L-alanyl]-L-prolinamide
作者:Naotake Kobayashi、Norihito Sato、Katsuji Sugita、Tsuyoshi Kihara、Katsumi Koike、Tamio Sugawara、Yukio Tada、Takayoshi Yoshikawa
DOI:10.1248/cpb.c20-00454
日期:2021.4.1
We explored orally effective thyrotropin-releasing hormone (TRH) mimetics, which show high central nervous system effects in structure–activity relationship studies based on in vivo antagonistic activity on reserpine-induced hypothermia (anti-hypothermic effect) in mice starting from TRH. This led us to the TRH mimetic: [(4S,5S)-(5-methyl-2-oxooxazolidine-4-yl)carbonyl]-[3-(thiazol-4-yl)-L-alanyl]-L-prolinamide
我们探索了口服有效的促甲状腺素释放激素(TRH)模拟物,该模拟物在结构-活性关系研究中显示出较高的中枢神经系统效应,该研究基于从 TRH 开始对小鼠利血平诱导的体温过低(抗低体温作用)的体内拮抗活性。这导致我们得到 TRH 模拟物:[(4 S ,5 S )-(5-甲基-2-氧代恶唑烷-4-基)羰基]-[3-(噻唑-4-基)-L-丙氨酰]-L -脯氨酰胺1 ,口服后比TRH显示出更高的抗低温作用。接下来,我们尝试对1的 N 端和 C 端进行进一步化学修饰,以找到更口服有效的 TRH 模拟物。结果,我们获得了几种 N 端和 C 端修饰的 TRH 模拟物,它们表现出很高的抗低温作用。 全尺寸图像