Antiviral activity evaluation and action mechanism of chalcone derivatives containing phenoxypyridine
作者:Piao Mao、Li Xing、Bangcan He、Tianyu Deng、Yishan Qin、Yuzhi Hu、Youshan An、Wei Xue
DOI:10.1007/s11030-024-10843-7
日期:——
In this paper, a series of phenoxypyridine-containing chalcone derivatives (L1–L28) were designed and synthesized, characterized on NMR and HRMS. Ningnanmycin (NNM) was used as a control agent. The results of the antiviral activity testing showed that the curative activity EC50 values of L1 and L4 against TMV were 140.5 and 90.7 μg/mL, respectively, which were superior to that of NNM (148.3 μg/mL)
本文设计并合成了一系列含苯氧基吡啶的查尔酮衍生物( L1 – L28 ),并通过NMR和HRMS进行了表征。宁南霉素(NNM)用作对照剂。抗病毒活性测试结果显示, L1和L4对TMV的疗效EC 50值分别为140.5和90.7 μg/mL,优于NNM(148.3 μg/mL)。 L1 、 L4和L15的抗TMV保护活性的EC 50值分别为154.1、102.6和140.0μg/mL,优于NNM(188.2μg/mL)。初步探讨了L4和NNM与烟草花叶病毒衣壳蛋白(TMV-CP)的作用机制。微尺度热泳(MST)实验结果表明, L4对TMV-CP具有很强的结合亲和力,解离常数Kd值为0.00149 µM,优于NNM(2.73016 µM)。分子对接实验结果表明, L4与TMV-CP的氨基酸残基形成的氢键比NNM更短,形成的氨基酸残基比NNM更多,这表明L4与TMV-CP的结合更紧密。本研究表明