Design, synthesis and antimicrobial evaluation of novel benzimidazole-incorporated sulfonamide analogues
作者:Hui-Zhen Zhang、Shi-Chao He、Yan-Jun Peng、Hai-Juan Zhang、Lavanya Gopala、Vijai Kumar Reddy Tangadanchu、Lin-Ling Gan、Cheng-He Zhou
DOI:10.1016/j.ejmech.2017.04.077
日期:2017.8
resistance. Compound 5c gave potent activities against Gram-positive bacteria and fungi, and 2,4-dichlorobenzyl derivative 5g showed good activities against Gram-negative bacteria. Both of these two active molecules 5c and 5g could effectively intercalate into calf thymus DNA to form compound−DNA complex respectively, which might block DNA replication to exert their powerful antimicrobial activity. Molecular
设计并合成了一系列新的并有苯并咪唑的磺酰胺类似物,以克服不断增加的抗生素耐药性。化合物5c对革兰氏阳性细菌和真菌具有有效的活性,而2,4-二氯苄基衍生物5g对革兰氏阴性细菌具有良好的活性。这两个活性分子5c和5g都可以有效地插入小牛胸腺DNA中,分别形成化合物-DNA复合物,这可能会阻止DNA复制,从而发挥其强大的抗菌活性。分子对接实验表明化合物5c和5g可以通过与DNA鸟嘌呤形成氢键而插入DNA六聚体双链体的碱基对中。这些高活性化合物通过人血清白蛋白(HSA)的运输行为表明,静电相互作用在活性化合物与HSA的强结合中起主要作用,这也被完整的几何计算优化所证实。