Novel 5-methyl-2-phenylphenanthridium derivatives as FtsZ-targeting antibacterial agents from structural simplification of natural product sanguinarine
作者:Jingru Liu、Ruxin Ma、Fangchao Bi、Fa Zhang、Chaoyu Hu、Henrietta Venter、Susan J. Semple、Shutao Ma
DOI:10.1016/j.bmcl.2018.04.015
日期:2018.6
A novel series of 5-methyl-2-phenylphenanthridium derivatives were displayed outstanding activity against a panel of antibiotic-sensitive and -resistant bacteria strains compared with their precursor sanguinarine, ciprofloxacin and oxacillin sodium. Compounds 7 l, 7m and 7n were found to display the most effective activity against five sensitive strains (0.06-2 μg/mL) and three resistant strains (0
与它们的前体桑吉那林,环丙沙星和奥沙西林钠相比,一系列新型的5-甲基-2-苯基菲啶鎓衍生物对一组抗生素敏感和耐药的菌株表现出出色的活性。发现化合物7 l,7m和7n对五种敏感菌株(0.06-2μg/ mL)和三种耐药菌株(0.25-4μg/ mL)表现出最有效的活性。动力学曲线表明,化合物7l对金黄色葡萄球菌ATCC25923具有最强的杀菌作用,其MBC值为16μg/ mL。细胞形态和FtsZ聚合试验表明,这些化合物通过干扰细菌FtsZ的功能抑制细菌增殖。