Design, synthesis and biological evaluation of novel hybrids of N-aryl pyrrothine-base α-pyrone as bacterial RNA polymerase inhibitors
作者:Xiangduan Tan、Mohan Huang、Siyun Nian、Yanfen Peng、Jianli Qin、Bo Kong、Xiaoqun Duan
DOI:10.1016/j.bmcl.2020.127146
日期:2020.6
problem, thus discovery of novel and effective antibiotics is urgent. A series of novel hybrids of N-aryl pyrrothine-base α-pyrone hybrids was designed, synthesized and evaluated as bacterial RNA polymerase (RNAP) inhibitors. Among them, compound 13c exhibited potent antibacterial activity against antibiotic-resistant S. aureus with the minimum inhibitory concentration (MIC) in the range of 1-4 μg/mL
细菌中的抗生素抗性已经成为新兴的公共卫生问题,因此迫切需要发现新型有效的抗生素。设计,合成和评估了一系列新型的N-芳基酪氨酸碱基α-吡喃酮杂种,作为细菌RNA聚合酶(RNAP)抑制剂。其中,化合物13c对抗生素耐药的金黄色葡萄球菌表现出有效的抗菌活性,最小抑制浓度(MIC)在1-4μg/ mL的范围内。此外,化合物13c对大肠杆菌RNAP表现出强的抑制活性,IC50值为16.06μM,对HepG2细胞的细胞毒性为7.04μM。分子对接研究进一步表明,化合物13c与细菌RNAP的开关区域结合。总之,化合物13c是新型细菌RNAP抑制剂,