Antibacterial activity of indolyl-quinolinium derivatives and study their mode of action
作者:Senyuan Cai、Wenchang Yuan、Ying Li、Xuanhe Huang、Qi Guo、Ziwei Tang、Zhiyuan Fang、Hai Lin、Wing-Leung Wong、Kwok-Yin Wong、Yu-Jing Lu、Ning Sun
DOI:10.1016/j.bmc.2019.02.024
日期:2019.4
functions in antiviral and antimicrobial. In the present study, a series of 1-methylquinolinium derivatives, which were integrated with an indole fragment at its 2-position and a variety of amino groups (cyclic or linear, mono- or di-amine) at the 4-position were synthesized and their antibacterial activities were evaluated. The results of antibacterial study show that the representative compounds can
丝状温度敏感突变体Z(FtsZ)由于其高度保守性和在细菌细胞分裂中的关键作用而被认为是开发新抗生素的有希望的靶标。已知吲哚的芳香族杂环支架在抗病毒和抗微生物方面显示出优异的医学功能。在本研究中,合成了一系列1-甲基喹啉鎓衍生物,这些衍生物在其2位上与吲哚片段整合,并在4位上结合了多种氨基基团(环状或线性,单胺或二胺)并评估其抗菌活性。抗菌研究结果表明,代表性化合物能有效抑制MRSA和VRE等菌株的生长,杀菌模式的MIC值为1-4μg/ mL。作用模式分析表明,c2可以有效破坏GTP水解速率和FtsZ的动态聚合,从而抑制细菌细胞分裂,然后导致细菌细胞死亡。另外,抗药性产生实验的结果表明,c2不太可能在金黄色葡萄球菌中诱导抗药性。