Coumarin Derivatives Containing Sulfonamide and Dithioacetal Moieties: Design, Synthesis, Antiviral Activity, and Mechanism
作者:Lei Zhao、Deyu Hu、Zengxue Wu、Chunle Wei、Shang Wu、Baoan Song
DOI:10.1021/acs.jafc.2c00672
日期:2022.5.18
new range of coumarin derivatives containing sulfonamide and dithioacetal structures were designed and synthesized, and their anti-CMV activities were detected by the half-leaf dead spot method. The results of the biological activity assay showed that most of the compounds exhibited outstanding anti-CMV activity. Especially, compound C23 displayed the optimal in vivo anti-CMV activity, with an EC50
黄瓜花叶病毒(CMV)是目前已知的宿主最多、分布最广、经济危害最大的植物病毒。为了开发针对这种严重病毒的新型抗病毒药物,设计并合成了一系列含有磺酰胺和二硫缩醛结构的新香豆素衍生物,并通过半叶死点法检测了它们的抗CMV活性。生物活性测定结果表明,大多数化合物表现出优异的抗CMV活性。其中,化合物C23表现出最佳的体内抗CMV活性,EC 50值为128 μg/mL,明显优于COS(781 μg/mL)和宁南霉素(436 μg/mL)。令人兴奋的是,我们发现化合物C23可能是一种有前途的植物激活剂,可以显着提高防御相关酶的活性和烟草叶绿素含量。此外,化合物C23通过诱导烟草中的脱落酸 (ABA) 途径增强对病毒感染的防御反应。这项工作为涉及作用机制研究和结构优化的多功能农药发现奠定了基础。