Nonpeptide angiotensin II antagonists derived from 1H-pyrazole-5-carboxylates and 4-aryl-1H-imidazole-5-carboxylates
作者:Wallace T. Ashton、Steven M. Hutchins、William J. Greenlee、George A. Doss、Raymond S. L. Chang、Victor J. Lotti、Kristie A. Faust、Tsing Bau Chen、Gloria J. Zingaro
DOI:10.1021/jm00075a014
日期:1993.11
phenyl)-1-[[2'-(1H-tetrazol-5-yl)biphenyl-4-y l] methyl]-1H-imidazole-5-carboxylic acid (12b), which was found to be a highly potent antagonist of the rabbit aorta AT1 receptor (IC50 0.55 nM). In conscious, normotensive rats, 12b at 0.1 mg/kg iv inhibited the pressor response to AII by 88%, with a duration of > 6 h. More extensively studied was an isosteric series of 3-alkyl-4-[[2'-(1H-tetrazol-5-
已经制备并评估了两个系列的衍生自羧基官能化“二唑”杂环的潜在血管紧张素II拮抗剂。最初,对4-芳基咪唑-5-羧酸盐的有限研究导致了2-正丁基-4-(2-氯苯基)-1-[[2'-(1H-四唑-5-基)联苯-4-基]甲基] -1H-咪唑-5-羧酸(12b),发现它是兔主动脉AT1受体的强效拮抗剂(IC50为0.55 nM)。在有意识的,血压正常的大鼠中,静脉注射0.1 mg / kg的12b可抑制对AII的升压反应88%,持续时间> 6小时。更广泛地研究了带有芳基,烷基或烷基的3-烷基-4-[[2'-(1H-四唑-5-基)联苯-4-基]甲基] -1H-吡唑-5-羧酸酯的等规系列。 N1处的芳烷基取代基。通过将取代的肼盐酸盐与2-(甲氧基亚氨基)-4-氧代链烷酸酯中间体缩合,可以高度区域选择性的方式获得这些化合物。在体外,最有效的吡唑羧酸在C3处具有正丁基,并在N1处被2,6-二氯苯基(19h)