Design, synthesis and mechanistic study of new 1,2,4-triazole derivatives as antimicrobial agents
作者:Noha H. Amin、Mohamed T. El-Saadi、Ahmed A. Ibrahim、Hamdy M. Abdel-Rahman
DOI:10.1016/j.bioorg.2021.104841
日期:2021.6
Compounds 9, 13a and 13b showed high to moderate antifungal activities against candida albicans (MIC values = 4–32 µg/ml), with considerable safety profiles; where no cytotoxicity against human embryonic kidney or red blood cells were detected at concentrations up to 32 µg/mL. Furthermore, compound 9 showed significant inhibitory activity against lansterol 14α-demethylase (IC50 = 0.27 µM), compared
设计、合成了新型 5-氨基-1,2,4-三唑衍生物及其环化的 1,2,4-三唑并 [1,5- a ] 嘧啶类似物,并评估了它们的抗菌活性。它们对五种细菌菌株(耐甲氧西林金进行了测试的金黄色葡萄球菌(MRSA),大肠杆菌,肺炎克雷伯氏菌,鲍曼不动杆菌和铜绿假单胞菌)使用环丙沙星作为阳性对照和针对两种真菌菌株(白色念珠菌和Ç .neoformans ) 使用氟康唑和两性霉素 B 作为阳性对照。化合物9、13a和13b对白色念珠菌显示出高至中度的抗真菌活性(MIC 值 = 4–32 µg/ml),具有相当大的安全性;在高达 32 µg/mL 的浓度下未检测到对人胚胎肾或红细胞的细胞毒性。此外, 与参考药物氟康唑 (IC 50 = 0.25 µM)相比,化合物9对兰甾醇 14α-脱甲基酶 (IC 50 = 0.27 µM)显示出显着的抑制活性。化合物9与细胞色素 P450 酶活性位点的分子对接揭