Synthesis and Biochemical Evaluation of 3-Fluoromethyl-1,2,3,4-tetrahydroisoquinolines as Selective Inhibitors of Phenylethanolamine <i>N</i>-Methyltransferase versus the α<sub>2</sub>-Adrenoceptor
作者:Gary L. Grunewald、Timothy M. Caldwell、Qifang Li、Meri Slavica、Kevin R. Criscione、Ronald T. Borchardt、Wen Wang
DOI:10.1021/jm990045e
日期:1999.9.1
A series of 3-fluoromethyl-1,2,3,4-tetrahydroisoquinolines (3-fluoromethyl-THIQs) was proposed, and their phenylethanolamine N-methyltransferase (PNMT) and alpha(2)-adrenoceptor affinities were predicted through the use of comparative molecular field analysis (CoMFA) models. These compounds were synthesized and evaluated for affinity at PNMT and the alpha(2)-adrenoceptor. It was discovered that these
提出了一系列的3-氟甲基-1,2,3,4-四氢异喹啉(3-氟甲基-THIQs),并通过使用比较剂预测了它们的苯乙醇胺N-甲基转移酶(PNMT)和α(2)-肾上腺素受体亲和力分子场分析(CoMFA)模型。合成了这些化合物,并评估了它们在PNMT和α(2)-肾上腺素受体上的亲和力。发现与已知的α(2)-肾上腺素能受体相比,这些化合物是PNMT最具选择性的抑制剂。为了确定这些化合物穿透血脑屏障(BBB)的能力,使用体外BBB模型测定了一系列具有各种计算分配系数(Clog P)的THIQ。这项研究发现亲脂性(Clog P)与血脑屏障通透性之间存在良好的相关性,表明THIQ的Clog P值至少为0.13-0.57,应该渗透到大脑中。两种化合物[3-氟甲基-7-N-(4-氯苯基)氨基磺酰基-THIQ(18)和3-氟甲基-7-氰基-THIQ(20)]具有大于0.57的计算分配系数并显示出选择性(alpha(2