Triaryl Benzimidazoles as a New Class of Antibacterial Agents against Resistant Pathogenic Microorganisms
作者:Pietro Picconi、Charlotte Hind、Shirin Jamshidi、Kazi Nahar、Melanie Clifford、Matthew E. Wand、J. Mark Sutton、Khondaker Miraz Rahman
DOI:10.1021/acs.jmedchem.7b00108
日期:2017.7.27
A new class of nontoxic triaryl benzimidazole compounds, derived from existing classes of DNA minor groove binders, were designed, synthesized, and evaluated for their antibacterial activity against multidrug resistant (MDR) Gram-positive and Gram-negative species. Molecular modeling experiments suggest that the newly synthesized class cannot be accommodated within the minor groove of DNA due to a
一种新的无毒三芳基苯并咪唑化合物,源自现有的 DNA 小沟结合剂,被设计、合成并评估了它们对多药耐药 (MDR) 革兰氏阳性和革兰氏阴性菌的抗菌活性。分子建模实验表明,由于分子形状的变化,新合成的类不能容纳在 DNA 的小沟内。化合物 8、13和14被发现是该系列中最活跃的,对 MDR 葡萄球菌和肠球菌的 MIC 范围为0.5–4 μg / mL。化合物13显示对 MDR 革兰氏阴性菌株的中等活性,MIC 在 16-32 μg/mL 范围内。活性化合物显示出杀菌作用模式,并且机制研究表明抑制细菌旋转酶是该化学类别的作用机制 (MOA)。MOA 得到分子建模研究的进一步支持。