作者:Rakesh Kumar Jain、Vikash Kumar Mishra、Varsha Kashaw
DOI:10.14233/ajchem.2017.20481
日期:2017.4.30
A series of 1,2,4-triazole derivatives were synthesized using appropriate synthetic route and structures were confirmed by IR, 1H NMR and elemental analysis. All the synthesized compounds (6a-6h and 7a-7h) were evaluated for antimicrobial activity by determining their minimum inhibitory concentrations (MICs) against a panel of Gram-positive, Gram-negative bacteria and fungi. Most of the compounds showed significant antimicrobial activity against Gram-positive bacteria viz. S. aureus, B. subtilis, Gram-negative bacteria viz. E. coli, P. aerugenosa and fungi viz. C. albicans, A. niger. Some of the compounds showed better antibacterial activities against Gram-positive bacteria compared to Gram-negative bacteria. Compounds 7g, 6g, 6a exhibited good MICs against Gram-positive bacteria and 7f showed better MICs against Gram-negative bacteria compared to reference norfloxacin. Compounds 7f and 7d exhibited MICs which is equipotent to the reference drug ketoconazole.
采用适当的合成路线合成了一系列 1,2,4-三唑衍生物,并通过红外光谱、1H NMR 和元素分析确认了其结构。对所有合成的化合物(6a-6h 和 7a-7h)进行了抗菌活性评估,确定了它们对革兰氏阳性、革兰氏阴性细菌和真菌的最低抑菌浓度(MICs)。大多数化合物对革兰氏阳性菌(金黄色葡萄球菌、枯草杆菌)、革兰氏阴性菌(大肠杆菌、绿脓杆菌)和真菌(白僵菌、黑僵菌)具有明显的抗菌活性。与革兰氏阴性菌相比,一些化合物对革兰氏阳性菌显示出更好的抗菌活性。与参照物诺氟沙星相比,化合物 7g、6g 和 6a 对革兰氏阳性菌的 MIC 值较高,而 7f 对革兰氏阴性菌的 MIC 值较高。化合物 7f 和 7d 的 MIC 值与参考药物酮康唑相当。