Synthesis, antimicrobial evaluation and QSAR analysis of novel nalidixic acid based 1,2,4-triazole derivatives
作者:Nisha Aggarwal、Rajesh Kumar、Prem Dureja、J.M. Khurana
DOI:10.1016/j.ejmech.2011.06.009
日期:2011.9
was emerged as promising antimicrobial agent (MIC = 16 μg/mL). Quantitative structure activity relationship (QSAR) analysis was carried out using various distance-based topological indices, steric and hydrophobic parameters. Based on the QSAR analysis it is indicative that lipophilic and steric parameters are the pre-requisites for these molecules to act as potent antimicrobial agents.
合成了新的基于萘啶酸的1,2,4-三唑衍生物,并使用诸如1 H NMR,13 C NMR,IR和质谱的光谱技术对其进行了表征。筛选所有这些化合物对五种细菌和两种病原性真菌的抗菌活性。这些化合物中的大多数显示出比母体化合物4-氨基-5-巯基-1,2,4-三唑更好的抗菌活性。在所有筛选的化合物中,3- 6-(2-氯苯基)-1,2,4-三唑[3,4- -b ] [1,3,4]噻二唑-3-基} -1-乙基-7 -甲基-1,8-萘啶-4(1 H)-一(23)成为有前途的抗菌剂(MIC = 16μg/ mL)。使用各种基于距离的拓扑指数,空间和疏水参数进行了定量结构活性关系(QSAR)分析。基于QSAR分析,表明亲脂性和空间参数是这些分子充当有效抗菌剂的前提。