作者:James T. Fletcher、Jill M. Sobczyk、Sarah C. Gwazdacz、Aaron J. Blanck
DOI:10.1016/j.bmcl.2018.09.011
日期:2018.11
A series of 1,3,4-trisubstituted-1,2,3-triazolium bromide salts were prepared by efficient two-step sequences of azide-alkyne cycloaddition and benzylic substitution. The antimicrobial activity of each triazolium salt and correlating triazole precursor was evaluated using a minimum inhibitory concentration (MIC) assay. MIC activities as low as 1 µM against Gram-positive bacteria, 8 µM against Gram-negative
通过叠氮化物-炔烃环加成和苄基取代的有效两步序列,制备了一系列1,3,4-三取代-1,2,3-三唑鎓溴化物盐。使用最小抑菌浓度(MIC)分析评估每种三唑鎓盐和相关的三唑前体的抗菌活性。盐类似物对革兰氏阳性菌的MIC活性低至1 µM,对革兰氏阴性菌的MIC活性低至4 µM,而对中性三唑则无活性。分别鉴定了代表选择性和广谱抗菌活性的类似物。在此基序中观察到的MIC结构与活性的关系表明,阳离子电荷的存在和整体疏水性的平衡具有强烈的影响力,而苄基vs.