Molecules, Vol. 22, Pages 273: Synthesis and Positive Inotropic Activity of [1,2,4]Triazolo[4,3-a] Quinoxaline Derivatives Bearing Substituted Benzylpiperazine and Benzoylpiperazine Moieties

In an attempt to search for more potent positive inotropic agents, two series of [1,2,4]triazolo[4,3-a] quinoxaline derivatives bearing substituted benzylpiperazine and benzoylpiperazine moieties were synthesized and their positive inotropic activities evaluated by measuring left atrial stroke volume in isolated rabbit heart preparations. Several compounds showed favorable activities compared with the standard drug, milrinone. Compound 6c was the most potent agent, with an increased stroke volume of 12.53% ± 0.30% (milrinone: 2.46% ± 0.07%) at 3 × 10−5 M. The chronotropic effects of compounds having considerable inotropic effects were also evaluated.

Source: Molecules - February 10, 2017 Category: Chemistry Authors: Xue-Kun Liu Long-Xu Ma Zhi-Yu Wei Xun Cui Shi Zhan Xiu-Mei Yin Hu-Ri Piao Tags: Article Source Type: research