Novel hybrids of metronidazole and quinolones: Synthesis, bioactive evaluation, cytotoxicity, preliminary antimicrobial mechanism and effect of metal ions on their transportation by human serum albumin
作者:Sheng-Feng Cui、Li-Ping Peng、Hui-Zhen Zhang、Syed Rasheed、Kannekanti Vijaya Kumar、Cheng-He Zhou
DOI:10.1016/j.ejmech.2014.08.063
日期:2014.10
A novel series of hybrids of metronidazole and quinolones as antimicrobial agents were designed and synthesized. Most prepared compounds exhibited good or even stronger antimicrobial activities in comparison with reference drugs. Furthermore, these highly active metronidazole–quinolone hybrids showed appropriate ranges of pKa, log P and aqueous solubility to pharmacokinetic behaviors and no obvious
设计并合成了一系列新型的甲硝唑和喹诺酮类抗微生物剂。与参考药物相比,大多数制备的化合物表现出良好或什至更强的抗菌活性。此外,这些高活性甲硝唑-喹诺酮杂种对药代动力学表现出适当的pKa,log P和水溶解度范围,对A549和人肝细胞LO2细胞无明显毒性。它们与金属离子对HSA的竞争性相互作用表明,Mg 2+离子参与化合物7d -HSA缔合可能导致游离化合物7d的浓度增加。化合物7d的分子建模和实验研究 DNA提示可能的抗菌机制可能与生物活性分子和topo IV-DNA复合物之间的多个结合位点有关。