Nonpeptide angiotensin II antagonists derived from 4H-1,2,4-triazoles and 3H-imidazo[1,2-b][1,2,4]triazoles
作者:Wallace T. Ashton、Christine L. Cantone、Linda L. Chang、Steven M. Hutchins、Robert A. Strelitz、Malcolm MacCoss、Raymond S. L. Chang、Victor J. Lotti、Kristie A. Faust
DOI:10.1021/jm00057a009
日期:1993.3
By a variety of synthetic routes, we have synthesized a series of 3,4,5-trisubstituted 4H-1,2,4-triazoles and a related series of 3H-imidazo[1,2-b][1,2,4]triazoles and evaluated them in vitro and in vivo as angiotensin II (AII) antagonists. Principal efforts focused on triazoles bearing an n-alkyl substitutent at C3 and a 4-[(2-carboxybenzoyl)amino]benzyl, (2'-carboxybiphenyl-4-yl)methyl, or [2'-(
通过多种合成途径,我们合成了一系列3,4,5-三取代的4H-1,2,4-三唑和相关的系列3H-咪唑并[1,2-b] [1,2,4三唑类药物,并在体外和体内将其评估为血管紧张素II(AII)拮抗剂。主要工作集中在三唑在C3处带有正烷基取代基和4-[(2-羧基苯甲酰基)氨基]苄基,(2'-羧基联苯-4-基)甲基或[2'-(1H-四唑-5)在N 4处的-基)联苯基-4-基]甲基侧链。在C5的众多变化中,苄硫基的效力最佳。特别值得注意的是3-正丁基-5-[(2-羧基苄基)硫基] -4-[[2'-(1H-四唑-5-基)联苯-4-基]甲基] -4H-1,2 ,4-三唑(71,IC50 1.4 nM),以0.3 mg / kg iv的速度阻断了清醒大鼠的AII升压反应,作用时间约为6小时,类似于DuP 753。尽管71的口服活性仅高10倍,但单酸类似物62具有良好的口服生物利用度。在双环衍生物中,最有效的是2-n-丁基5