Design, Synthesis, and Biological Activity of Novel Myricetin Derivatives Containing Amide, Thioether, and 1,3,4-Thiadiazole Moieties
作者:Xianghui Ruan、Cheng Zhang、Shichun Jiang、Tao Guo、Rongjiao Xia、Ying Chen、Xu Tang、Wei Xue
DOI:10.3390/molecules23123132
日期:——
A series of myricetin derivatives containing amide, thioether, and 1,3,4-thiadiazole moieties were designed and synthesized, and their antiviral and antibacterial activities were assessed. The bioassays showed that all the title compounds exhibited potent in vitro antibacterial activities against Xanthomonas citri (Xac), Ralstonia solanacearum (Rs), and Xanthomonas oryzae pv. Oryzae (Xoo). In particular
设计并合成了一系列含有酰胺、硫醚和 1,3,4-噻二唑部分的杨梅素衍生物,并评估了它们的抗病毒和抗菌活性。生物测定表明,所有标题化合物都表现出对柠檬黄单胞菌 (Xac)、青枯病菌 (Rs) 和米黄单胞菌 pv 的有效体外抗菌活性。水稻(Xoo)。特别是,化合物 5a、5f、5g、5h、5i 和 5l 的 EC50 值为 11.5–27.3 μg/mL,对 Xac 显示出强效抗菌活性,优于商业杀菌剂 Bismerthiazol (34.7 μg/mL) 和噻二唑铜 (41.1% μg/mL)。此外,还测试了目标化合物对烟草花叶病毒(TMV)的体内抗病毒活性。在这些化合物中,治疗、保护、5g 的灭活活性分别为 49.9、52.9 和 73.3%,优于市售抗病毒药物利巴韦林(分别为 40.6、51.1 和 71.1%)。这项研究表明,带有酰胺、硫醚和 1,3,4-噻二唑部分的杨梅素衍生物可以作为