Potent arylamide derivatives as dual-target antifungal agents: Design, synthesis, biological evaluation, and molecular docking studies
作者:Yue Dong、Xinyong Liu、Yunfei An、Min Liu、Jun Han、Bin Sun
DOI:10.1016/j.bioorg.2020.103749
日期:2020.6
block the ergosterol synthesis. In this study, we designed a series of dual-target arylamides derivatives based on the analysis of active sites (SE, CYP51). Subsequently, these target compounds were synthesized, and their antifungal activity was evaluated. Most of compounds demonstrate the potent antifungal activity against multiple Candida spp. and A. fum. In particular, the antifungal activities of compounds
由于高感染率和频繁出现的耐药性,真菌感染已成为严重的医学问题。麦角固醇是真菌细胞膜的重要结构成分,其合成酶(角鲨烯环氧酶(SE)和14α-脱甲基酶(CYP51))被认为是阻断麦角固醇合成的关键点。在这项研究中,我们基于对活性位点(SE,CYP51)的分析设计了一系列双靶芳酰胺衍生物。随后,合成这些目标化合物,并评估其抗真菌活性。大多数化合物对多种念珠菌均显示出有效的抗真菌活性。和烟熏 特别是,化合物10b和11c的抗真菌活性不仅优于阳性对照药物,但对耐药真菌也有明显的抑制作用(C.alb。Strain100,C.alb。Strain103)。因此,对其作用机理进行了进一步研究。细胞吸收和电子显微镜观察表明,目标化合物能够通过自由扩散进入真菌细胞质区域,并破坏细胞膜结构。同时,初步机制已证明它们可以通过抑制双重靶标的活性来影响麦角甾醇的合成。值得注意的是,它们在体内还表现出优异的抗真菌活性和