Activity of Antifungal Organobismuth(III) Compounds Derived from Alkyl Aryl Ketones against S. cerevisiae: Comparison with a Heterocyclic Bismuth Scaffold Consisting of a Diphenyl Sulfone
作者:Toshihiro Murafuji、Mai Tomura、Katsuya Ishiguro、Isamu Miyakawa
DOI:10.3390/molecules190811077
日期:——
A series of hypervalent organobismuth(III) compounds derived from alkyl aryl ketones [XBi(5-R'C6H3-2-COR)(Ar)] was synthesized to investigate the effect of the compounds' structural features on their antifungal activity against the yeast Saccharomyces cerevisiae. In contrast to bismuth heterocycles [XBi(5-RC6H3-2-SO2C6H4-1'-)] derived from diphenyl sulfones, a systematic quantitative structure-activity
合成了一系列衍生自烷基芳基酮 [XBi(5-R'C6H3-2-COR)(Ar)] 的高价有机铋 (III) 化合物,以研究这些化合物的结构特征对其抗酵母菌活性的影响酿酒酵母。与衍生自二苯砜的铋杂环 [XBi(5-RC6H3-2-SO2C6H4-1'-)] 相比,系统的定量构效关系研究是可能的。活性取决于 Ar 基团,对于较重的 X 原子会增加,而延长烷基链 (R) 或引入取代基 (R') 会降低活性。IBi(C6H4-2-COCH3)(4-FC6H4) 是最活跃的。其活性优于相关的无环类似物 ClBi[C6H4-2-CH2N(CH3)2](Ar) 和 ClBi(C6H4-2-SO2 tert-Bu)(Ar),也可与杂环 ClBi( C6H4-2-SO2C6H4-1'-),这是我们之前研究中最活跃的化合物。密度函数理论计算表明,高价铋烷与铋原子上的生物分子发生亲核加成,得到中间体 ate 络