Design, Synthesis, and Insecticidal Evaluation of <i>N</i>-Pyridylpyrazole Amide Derivatives Containing 4,5-Dihydroisoxazole Amide as Potential Ryanodine Receptor Activators
作者:Xiwen Pang、Li Han、Cong Zhou、Yuxin Li、Xiaoyong Xu、Xusheng Shao、Zhong Li
DOI:10.1021/acs.jafc.3c03199
日期:2023.9.20
Using the 4,5-dihydroisoxazol amide structure to expand the aliphatic amide moiety of chlorantraniliprole, a series of 28 novel N-pyridylpyrazolecarboxamide derivatives containing 4,5-dihydroisoxazol amide fragment were designed and synthesized. All target compounds had been properly characterized and confirmed by 1H NMR, 13C NMR, and HRMS, and the effects were evaluated against Mythimna separata (M
利用4,5-二氢异恶唑酰胺结构扩展氯虫苯甲酰胺的脂肪族酰胺部分,设计合成了一系列28种含有4,5-二氢异恶唑酰胺片段的新型N-吡啶基吡唑甲酰胺衍生物。所有目标化合物均经过1 H NMR、13 C NMR 和 HRMS 正确表征和证实,并针对粘虫( M. separata ) 和小菜蛾( P. xylostella )评估了效果。生物测定结果表明,大部分目标化合物在50 mg/L浓度下对斑小菜蛾和小菜蛾表现出良好的杀虫活性;尤其是,化合物A4针对M. separata表现出3.27mg/L的LC 50值。钙成像实验表明,目标化合物A4与氯虫苯甲酰胺具有相似的作用机制,导致细胞质Ca 2+浓度增加。分子对接揭示了化合物A4与兰尼碱受体可能的结合模式。