Synthesis and inotropic evaluation of 1-substituted-N-(4,5-dihydro-1-methyl-[1,2,4]triazolo[4,3-a]quinolin-7-yl)piperidine-4-carboxamides
作者:Ji-Yong Liu、Hai-Ling Yu、Zhe-Shan Quan、Xun Cui、Hu-Ri Piao
DOI:10.1016/j.bmcl.2009.03.089
日期:2009.5
A series of 1-substituted-N-(4,5-dihydro-1-methyl-[1,2,4]triazolo[4,3-a]quinolin-7-yl) piperidine-4-carboxamides has been synthesized and evaluated for positive inotropic activity by measuring left atrium stroke volume in isolated rabbit-heart preparations. Some of these derivatives exhibited favorable activity compared with the standard drug, milrinone, among which 1-(2-fluorobenzyl)-N-(4,5-dihydro-1-methyl-[1,2,4] triazolo[4,3-a] quinolin-7-yl) piperidine-4-carboxamide 6a was the most potent, increasing stroke volume by 11.92 +/- 0.35% (milrinone: 6.36 +/- 0.13%) at 1 x 10(-4) M. (c) 2009 Elsevier Ltd. All rights reserved.