Novel, Non-acylguanidine-type Na<sup>+</sup>/H<sup>+</sup> Exchanger Inhibitors: Synthesis and Pharmacology of 5-Tetrahydroquinolinylidene Aminoguanidine Derivatives
作者:Shoji Fukumoto、Eiko Imamiya、Keiji Kusumoto、Shuji Fujiwara、Toshifumi Watanabe、Mitsuru Shiraishi
DOI:10.1021/jm0104567
日期:2002.7.1
research into new types of non-acylguanidine Na(+)/H(+) exchanger (NHE) inhibitors, we designed and synthesized aryl-fused tetrahydropyranylidene and cyclohexylidene aminoguanidine derivatives I (X = O, CH(2)), which were tested for their inhibitory effects on rat platelet NHEs. After optimization, we found that the S isomer of tetrahydroquinoline derivatives that possess a methyl group in the 4-position
在我们对新型非酰基胍Na(+)/ H(+)交换剂(NHE)抑制剂的研究过程中,我们设计并合成了芳基稠合的四氢吡喃亚基和环己叉基氨基胍衍生物I(X = O,CH(2) ),测试其对大鼠血小板NHE的抑制作用。经过优化后,我们发现四氢喹啉衍生物的S异构体在Ar(2)的4-位具有一个甲基,而在O-位的一个卤素或甲基具有较高的抑制活性。在这些化合物中,(5E,7S)-[[7-(5-氟-2-甲基苯基)-4-甲基-7,8-二氢-5(6H)-喹啉亚基]氨基]胍二甲磺酸盐(18,T-发现162559是大鼠和人类血小板NHE的有效抑制剂,IC(50)值分别为14和13 nM。此外,在体内大鼠心肌梗死模型中(1小时缺血24小时再灌注),18(0.1 mg / kg,在冠状动脉闭塞前5分钟或2小时静脉内给药)显示出明显的活性(分别为33%或23%抑制)。这些结果表明18可能表现出对缺血再灌注引起的心脏损伤的有效而持久的保护作用。