作为潜在的多目标昆虫生长调节剂候选人,新型六环型pyrazol-3-amide衍生物的架子跳跃方法
Bingbo Guo1, Shihui Luo1, Lei Chen2
1Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
Pesticide biochemistry and physiology
|October 30, 2024
概括
新的pyrazol-amide衍生物通过准多种昆虫变通路,显示出强大的杀虫活性. 化合物a5和a21有效地控制了像Plutella xylostella和Ostrinia furnacalis这样的害虫,为新的昆虫生长调节剂提供了一个有希望的策略.
科学领域:
- 农业化学 农业化学
- 昆虫学 昆虫学是一门学科.
- 药用化学 医学化学
背景情况:
- 埃克迪松受体 (EcR) 和昆虫基因酶是开发新的昆虫生长调节剂 (IGR) 的关键目标.
- 现有的IGR通常针对单一途径,需要开发多目标药物以提高疗效.
研究的目的:
- 设计和合成新型六环式pyrazol-amide衍生物作为潜在的多目标IGR.
- 评估这些衍生品对关键农业害虫的杀虫活性和作用机制.
主要方法:
- 合理的药物设计,使用基于化合物 (6j) 的脚手架跳跃策略.
- 一系列六环醇胺衍生物的合成.
- 生物测试以确定针对Plutella xylostella和Ostrinia furnacalis的杀虫活性 (LC50值).
- 作用机制研究,包括EcR结合和胆酶抑制试验.
- 分子对接以预测与目标酶的相互作用.
主要成果:
- 大多数合成的化合物都表现出显著的杀虫活性.
- 与化合物6j相比,a5和a21化合物对P. xylostella和O. furnacalis表现出更高的活性.
- 化合物a21显示出强大的多目标活性,抑制了EcR,OfChtI,OfChtII和OfChi-h,超过了6j的疗效.
- 由于结构修改,分子对接揭示了a21与酸酶的增强相互作用.
结论:
- 新型六环醇胺衍生物,特别是a5和a21,是有效的多目标IGR.
- 这些发现为开发针对多种重要昆虫变过程的先进杀虫剂提供了坚实的基础.
- 结构性修改,如转移碳胺组,可以显著提高目标亲和力和杀虫力的功效.
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