A new potential aphicide against Myzus persicae: Design, synthesis and 3D-QSAR of novel phenoxypyridine derivatives containing 4-aminopyrimidine
作者:Lizeng Wang、Zhaokai Yang、Shixiang Pan、Minna Zhu、Aiying Guan、Xufeng Sun、Jinbo Zhang、Yuquan Song、Changling Liu、Xinling Yang
DOI:10.1016/j.molstruc.2022.132949
日期:2022.8
compounds showed significant insecticidal activity against Myzus persicae (M. persicae) in vivo. Especially, the activity of T11 (LC50 = 0.34 mg⋅L − 1) was higher than that of Pymetrozine, Flufenerim and other derivatives, indicating that this compound was a promising aphicide candidate for further development. The structure-activity relationship (SAR) of these derivatives was also analyzed qualitatively. Furthermore
蚜虫是一种破坏性害虫,由于其吸食汁液和传播植物病毒,可对农作物造成重大损害。为寻找新的杀虫剂候选物,以取代的苯氧基吡啶烷基胺为关键中间体,采用中间衍生法(IDM)设计合成了31种含4-氨基嘧啶的苯氧基吡啶衍生物。对所有目标化合物的杀虫活性进行了评估,生物测定结果表明,一些化合物在体内对桃蚜(M. persicae)表现出显着的杀虫活性。特别是 T11 的活性 (LC 50 = 0.34 mg· L - 1) 高于吡蚜酮、Flufenerim 和其他衍生物,表明该化合物是一种有前途的杀螨剂候选物,有待进一步开发。还定性分析了这些衍生物的构效关系 (SAR)。此外,建立了一个三维定量构效关系(3D-QSAR)模型,该模型具有有价值的指导,即静电场和空间场对杀虫活性具有重要作用。目前的工作为合理设计潜在的蚜虫控制剂提供了有用的线索。