Design, synthesis and biological evaluation of novel 5-(piperazin-1-yl)quinolin-2(1H)-one derivatives as potential chitin synthase inhibitors and antifungal agents
作者:Qinggang Ji、Qiao Deng、Bing Li、Baihui Li、Yangli Shen
DOI:10.1016/j.ejmech.2019.07.035
日期:2019.10
A series of 5-(4-substituted piperazin-1-yl)quinolin-2(1H)-one derivatives (4a-4w) has been designed as chitin synthase inhibitors and antifungal agents. The designed compounds were obtained by an environmentally benign route in four steps starting from 5-amino-3,4-dihydroquinolin-2(1H)-one which was offered by an easily achieved synthetic method. The synthesized compounds were tested for their inhibition
一系列5-(4-取代的哌嗪-1-基)喹啉-2(1 H)-一衍生物(4a-4w)被设计为几丁质合酶抑制剂和抗真菌剂。设计的化合物是通过环境友好的方法从5个氨基3,4-二氢喹啉2(1 H)-开始的四个步骤中获得的,该步骤可通过易于实现的合成方法获得。测试合成的化合物对几丁质合酶的抑制能力。化合物4a和4c表现出优异的抑制活性,其IC 50值分别为0.10 mM和0.15 mM,这优于其IC 50值为0.18 mM的多聚毒素B。化合物4h,4i,4j,4k和4n表现出中等抑制效力,IC 50值分别为0.38、0.36、0.47、0.47和0.37 mM。这些合成的化合物还评估了其对白色念珠菌,新型隐球菌和黄曲霉的体外抗真菌活性。化合物4a,4i和4j对白念珠菌具有最强的抗真菌活性 MIC为32μg/ mL,与多聚毒素B相似。对所选菌株的抗菌活性结果表明,所设计的化合物对细菌的效力很小,表明这些化