Design, synthesis, bioactivity and mechanism of dithioacetal derivatives containing dioxyether moiety
作者:Yanju Wang、Jian Zhang、Fangcheng He、Xiuhai Gan、Baoan Song、Deyu Hu
DOI:10.1016/j.bmcl.2019.06.030
日期:2019.8
The present work designed and synthesized a series of dithioacetal derivatives containing dioxyether, as well as evaluated their antiviral activities against tobacco mosaic virus (TMV). Bioassays demonstrated that the target compounds showed excellent anti-TMV activities in vivo and in vitro. Compound 24c has excellent anti-TMV activities, and its curative, protective and inactivating activities for
本工作设计并合成了一系列含有二氧醚的二硫缩醛衍生物,并评估了其对烟草花叶病毒(TMV)的抗病毒活性。生物测定法证明目标化合物在体内和体外均显示出优异的抗TMV活性。化合物24c具有优异的抗TMV活性,对TMV的治愈,保护和灭活活性分别为50.9%,58.9%和81.8%,明显优于利巴韦林(分别为50.2%,41.3%和69.5%)。 )。此外,EC 50对化合物24c的抗TMV具有灭活活性为67.9 mg / L,优于利巴韦林(149.5 mg / L)。透射电子显微镜显示,化合物24c对TMV颗粒的形态造成了很大的破坏,导致断裂和弯曲。分子对接模型显示该化合物与氨基酸GLN57,ASN73,TYR139和SER138的活性位点形成了五个常规氢键。此外,荧光滴定和微量热泳的测试结果表明,化合物24c与TMV外壳蛋白(TMV CP)具有很强的结合力,缔合常数(K a)为1.04×10 5 L