Discovery of Novel Isoxazoline Derivatives Containing Diaryl Ether against Fall Armyworms
作者:Di Feng、Shang Wu、Biaobiao Jiang、Siqi He、Yuqin Luo、Fangyi Li、Baoan Song、Runjiang Song
DOI:10.1021/acs.jafc.3c00824
日期:2023.5.10
frugiperda) with traditional insecticides. To solve this pending issue, a series of novel isoxazoline derivatives containing diaryl ether structures were designed and synthesized, and most of the target compounds exhibited excellent insecticidal activity. Based on the three-dimensional quantitative structure–activity relationship (3D-QSAR) model analysis, we further optimized the molecular structure with compound
随着害虫抗药性的不断进化,传统杀虫剂防治秋粘虫(Spodoptera frugiperda )是一个巨大的挑战。为了解决这一悬而未决的问题,设计合成了一系列含有二芳基醚结构的新型异恶唑啉衍生物,大多数目标化合物表现出优异的杀虫活性。基于三维定量构效关系(3D-QSAR)模型分析,我们进一步优化了分子结构,得到了化合物L35并测试了其活性。化合物L35 (LC 50 = 1.69 mg/L) 对草地夜蛾表现出优异的杀虫活性, 优于市售氟虫腈 (LC 50 = 70.78 mg/L) 和茚虫威 (LC 50 = 5.37 mg/L)。酶联免疫吸附试验表明,L35可以上调昆虫体内 GABA 的水平。此外,分子对接和转录组学结果也表明,化合物L35可能通过作用于GABA受体影响草地螽斯的神经系统。值得注意的是,通过高效液相色谱法(HPLC),我们能够得到化合物L35的两种对映体,杀虫活性测试表明S