N-thiadiazole-4-hydroxy-2-quinolone-3-carboxamides bearing heteroaromatic rings as novel antibacterial agents: Design, synthesis, biological evaluation and target identification
作者:Wenjie Xue、Xueyao Li、Guixing Ma、Hongmin Zhang、Ya Chen、Johannes Kirchmair、Jie Xia、Song Wu
DOI:10.1016/j.ejmech.2019.112022
日期:2020.2
new class of antibacterial agents, as one of its derivatives was identified as an antibacterial agent against S. aureus. However, no potency-directed structural optimization has been performed. In this study, we designed and synthesized 37 derivatives, and evaluated their antibacterial activity against S. aureus ATCC29213, which led to the identification of ten potent antibacterial agents with minimum
由于发生抗生素抗性,细菌感染性疾病已成为对公共健康的严重威胁。为了克服抗生素抗性,迫切需要新型抗生素。N-噻二唑-4-羟基-2-喹诺酮-3-羧酰胺是一类潜在的新型抗菌剂,因为其衍生物之一被确定为针对金黄色葡萄球菌的抗菌剂。但是,尚未执行效能导向的结构优化。在这项研究中,我们设计和合成了37种衍生物,并评估了它们对金黄色葡萄球菌ATCC29213的抗菌活性,从而鉴定出十种有效抑菌剂,其最低抑菌浓度(MIC)值均低于1μg/ mL。接下来,我们针对一组抗药性临床分离株进行了细菌生长抑制测定,包括耐甲氧西林的金黄色葡萄球菌,以及对HepG2和HUVEC细胞的细胞毒性测定。一种被测试的化合物,称为1-乙基-4-羟基-2-氧代-N-(5-(噻唑-2-基)-1,3,4-噻二唑-2-基)-1,2-二氢喹啉-与万古霉素相比,3-羧酰胺(g37)对被测菌株的抗菌力(MIC:0.25-1μg/ mL对1-64μg/