Identification of novel 2-aminothiazole conjugated nitrofuran as antitubercular and antibacterial agents
作者:Kai Ran、Chao Gao、Hongxia Deng、Qian Lei、Xinyu You、Ningyu Wang、Yaojie Shi、Zhihao Liu、Wei Wei、Cuiting Peng、Lu Xiong、Kunjie Xiao、Luoting Yu
DOI:10.1016/j.bmcl.2016.05.088
日期:2016.8
infections. In order to develop promising antitubercular and antibacterial lead compounds, we designed and synthesized a new series of derivatives of 2-aminothiazole conjugated nitrofuran with activities against both Mycobacterium tuberculosis and Staphylococcus aureus. Eight compounds 12e, 12k, 12l, 12m, 18a, 18d, 18e, and 18j emerged as promising antitubercular agents. Structure–activity relationships (SARs)
抗生素抗性病原体的出现是细菌感染治疗中一个持续存在的主要问题。为了开发有前景的抗结核和抗菌先导化合物,我们设计并合成了一系列新的2-氨基噻唑共轭硝基呋喃衍生物,具有对抗结核分枝杆菌和金黄色葡萄球菌的活性。八个化合物12e,12k,12l,12m,18a,18d,18e和18j出现了有希望的抗结核药物。讨论了结构-活性关系(SARs),结果表明,在5-硝基-N-(4-苯基噻唑-2-基)呋喃-2-羧酰胺的苯位置3处取代的衍生物表现出优异的效能。最有效的化合物18e在该位置被苯甲酰胺取代,对Mtb H37Ra的最低抑菌浓度(MIC)为0.27μg / mL,对金黄色葡萄球菌的抑菌浓度为1.36μg/ mL 。此外,化合物18e对正常的Vero细胞没有明显的细胞毒性(IC 50 = 50.2μM)。结果表明,氨基噻唑共轭硝基呋喃的新型支架将是一类有前景的有效抗结核和抗菌药物。