Design, synthesis, and structure-activity relationship studies of l-amino alcohol derivatives as broad-spectrum antifungal agents
作者:Liyu Zhao、Linfeng Tian、Nannan Sun、Yin Sun、Yixuan Chen、Xinran Wang、Shizhen Zhao、Xin Su、Dongmei Zhao、Maosheng Cheng
DOI:10.1016/j.ejmech.2019.05.047
日期:2019.9
To discover broad spectrum antifungal agents, two strategies were applied, and a novel class of l-amino alcohol derivatives were designed and synthesized. 3-F substituted compounds 14i, 14n, 14s and 14v exhibited excellent antifungal activities with broad antifungal spectra against C. albicans and C. tropicalis, with MIC values in the range of 0.03–0.06 μg/mL, and against A. fumigatus and C. neoformans
为了发现广谱抗真菌剂,应用了两种策略,并且设计并合成了一类新型的1-氨基醇衍生物。3-F取代的化合物14i,14n,14s和14v表现出优异的抗真菌活性,对白念珠菌和热带念珠菌具有宽泛的抗真菌谱,MIC值在0.03-0.06μg/ mL范围内,对烟曲霉和C新甲虫,MIC值在1-2μg/ mL的范围内。值得注意的是,化合物14i,14n,14s和14v还显示出对从艾滋病患者中分离出的耐氟康唑耐药菌株17#和CaR的中等活性。而且,仅S构型的化合物显示出抗真菌活性。初步的机理研究表明,化合物14v的有效抗真菌活性源于对白色念珠菌CYP51的抑制。化合物14n和14v对哺乳动物A549细胞几乎无毒,它们在人血浆中的稳定性非常好。