Synthesis and Antibacterial Evaluation of Bis‐thiazolium, Bis‐imidazolium, and Bis‐triazolium Derivatives
作者:Benoît Thomas、Raphaël E. Duval、Stéphane Fontanay、Mihayl Varbanov、Michel Boisbrun
DOI:10.1002/cmdc.201900151
日期:2019.7.3
compounds: bis‐thiazoliums, bis‐imidazoliums, and bis‐1,2,4‐triazoliums. If some compounds of the first series showed fair antibacterial activity, most of those belonging to the two other series were highly potent, with minimum inhibitory concentrations close to 1 μg mL−1. Some of them also exhibited low toxicity toward eukaryotic MRC‐5 lung fibroblasts, and we showed that this toxicity is clearly correlated
鉴于细菌耐药性在世界范围内的传播,迫切需要开发具有有效抗菌活性且不受该现象影响的新化合物。季铵化合物已被用作消毒剂多年,但是最近的进展表明,与通常使用的单阳离子化合物相比,聚阳离子衍生物具有更强的活性,并且不易产生细菌耐药性。从这个意义上讲,我们制备了三套新的双阳离子化合物:双噻唑鎓,双咪唑鎓和双1,2,4-三唑鎓。如果第一个系列的某些化合物显示出良好的抗菌活性,则其他两个系列的大多数化合物都具有很高的效力,最低抑菌浓度接近1μgmL -1。它们中的一些对真核MRC-5肺成纤维细胞的毒性也很低,我们证明了这种毒性与Clog P明显相关。最后,发现四种选定的化合物表现出明显的杀菌作用。