Synthesis and antibacterial activity of novel phosphorylated flavonoid derivatives
作者:Minguo Huang、Xianghui Ruan、Qin Li、Juping Zhang、Xinmin Zhong、Xiaobing Wang、Yan Xie、Wei Xiao、Wei Xue
DOI:10.1080/10426507.2017.1295963
日期:2017.8.3
ABSTRACT ABSTRACT Fifteen novel phosphonate derivatives containing a flavonoid unit were designed and synthesized, based on the connection method of active fragments. The target compounds were characterized by 1H NMR, 13C NMR, 13P NMR, ESI-MS, IR, and elemental analysis. Bioassay results indicated that some of the compounds possessed an excellent inhibition activity (≥57.38%) against Xanthomonas oryzae pv
图形摘要 摘要 基于活性片段的连接方法,我们设计并合成了 15 种含有类黄酮单元的新型膦酸酯衍生物。目标化合物通过1H NMR、13C NMR、13P NMR、ESI-MS、IR和元素分析进行表征。生物测定结果表明,部分化合物在浓度为 100 µg/mL 时对米黄单胞菌 (Xoo) 具有优异的抑制活性 (≥57.38%),50% 有效浓度 (EC50) 值范围为 40.29 至 66.87 µg/mL,优于商业抗菌剂双甲噻唑 (88.51 µg/mL)。化合物(2-(3-Bromophenyl)-4-oxo-4H-chromen-3-yl)二乙基膦酸酯(2f)和化合物(2-(4-(叔丁基)苯基)-4-oxo-4H-chromen) -3-yl) 膦酸二乙酯 (2h) 即使在 50 µg/mL 的浓度下也显示出更好的 Xoo 抑制率。此外,一些化合物对 Xanhomonas axonopodis