Design, synthesis, and biological evaluation of novel triazole derivatives as inhibitors of cytochrome P450 14α-demethylase
作者:Xiaoyun Chai、Jun Zhang、Honggang Hu、Shichong Yu、Qingyan Sun、Zhigang Dan、Yuanying Jiang、Qiuye Wu
DOI:10.1016/j.ejmech.2008.11.007
日期:2009.5
Based on the results of computational docking to the active site of the cytochrome P450 14α-demethylase (CYP51), a series of 1-(1H-1,2,4-triazole-1-yl)-2-(2,4-difluorophenyl)-3-substituted-2-propanols as analogs of fluconazole were designed, synthesized, and evaluated as antifungal agents. The MIC80 values indicate that compounds 1a–n exhibited higher activity against nearly all fungi tested except
基于对接至细胞色素P45014α-脱甲基酶(CYP51)活性位点的计算结果,一系列1-(1 H -1,2,4-三唑-1-基)-2-(2,4设计,合成并评价了作为氟康唑类似物的-(二氟苯基)-3-取代-2-丙醇作为抗真菌剂。MIC 80值表明,化合物1a – n对除烟曲霉以外的几乎所有测试真菌均显示出比氟康唑更高的活性,而化合物2a – f,3a – f对所有测试真菌均无活性或仅有中等活性。值得注意的是,化合物的MIC值1A,1b和1g比氟康唑体外抗小孢子石膏的含量低64倍。化合物1a,1b和2b的抗白念珠菌活性(氟康唑的MIC 80值为0.0039μg/ mL)是其128倍,并且其活性也高于其他阳性对照。计算对接实验表明,CYP51的抑制作用涉及与血红素基团的铁,亲水性H键区,疏水性区和窄的疏水性裂口的配位键。另外,当侧链较短时,化合物的活性将增强。