A Structure-Activity Relationship Study of Benzylic Modifications of 4-[1-(1-Naphthyl)ethyl]-1H-imidazoles on .alpha.1- and .alpha.2-Adrenergic Receptors
作者:Seoung-Soo Hong、Karl J. Romstedt、Dennis R. Feller、Fu-Lian Hsu、Thomas L. Cupps、Robert A. Lyon、Duane D. Miller
DOI:10.1021/jm00041a011
日期:1994.7
The naphthalene analog of medetomidine (1), 4-[1-(1-naphthyl)ethyl]-1H- imidazole (2), is a highly potent, selective alpha 2-adrenoceptor agonist. We have initiated a structure-activity relationship study of the replacement of the methyl group on the carbon bridge between the naphthalene and imidazole rings of 2 with a hydrogen, hydroxy, methoxy, carbonyl, or trifluoromethyl group and compared their
美托咪定(1)的萘类似物4- [1-(1-(萘基)乙基] -1H-咪唑(2)是一种高效的选择性α2肾上腺素受体激动剂。我们已开始进行结构-活性关系研究,研究用氢,羟基,甲氧基,羰基或三氟甲基取代萘和咪唑环2之间碳桥上的甲基,并将它们的生物活性与美托咪定1和2的旋光异构体。2的类似物是α2A-肾上腺素受体介导的人血小板聚集的拮抗剂和豚鼠回肠中α1和α2肾上腺素受体的激动剂。这些类似物在血小板(α2A亚型)和豚鼠回肠(α1亚型)上的等级顺序和效力几乎相同,而外消旋体和S-(+)-2,去甲基,羟基类似物和羟基类似物是豚鼠回肠中α2肾上腺素受体的有效激动剂。除了去甲基类似物5以外,其他类似物在α2A-(人血小板),α1-(豚鼠回肠)或α2-(豚鼠回肠)肾上腺素上均不如母体药物2强大。受体系统。与类似物2一样,在功能(激动剂活性)和生化(受体置换)研究中,去甲基和甲氧基取代的类似物均保留了更高的alpha