Synthesis of thyrotropin-releasing hormone analogs. 1. Complete dissociation of central nervous system effects from thyrotropin-releasing activity
作者:Tamas Szirtes、Lajos Kisfaludy、Eva Palosi、Laszlo Szporny
DOI:10.1021/jm00372a006
日期:1984.6
Twenty-four thyrotropin-releasing hormone (TRH) analogues containing mainly aliphatic amino acids in position 2 were synthesized and tested for central nervous system (CNS) and hormonal (TSH) activity. Application of the pentafluorophenyl ester method in the syntheses resulted in optimal yields and high purity of the products. The neutral tripeptides pGlu- Nva -Pro-NH2 (9), pGlu-Nle-Pro-NH2 (10), and
合成了在位置2主要包含脂肪族氨基酸的二十四种促甲状腺激素释放激素(TRH)类似物,并测试了其中枢神经系统(CNS)和激素(TSH)的活性。五氟苯基酯方法在合成中的应用导致了最佳收率和高纯度的产物。具有三元或四元直链或支链烷基侧链的中性三肽pGlu-Nva-Pro-NH2(9),pGlu-Nle-Pro-NH2(10)和pGlu-Leu-Pro-NH2(3)中央氨基酸位置的抗癫痫作用比TRH强2.5至10倍,表明组氨酸的存在对于CNS活性不是必需的。与TRH相比,类似物9表现出十倍的抗过敏活性,并且发现其在释放TSH方面完全没有活性。