Structural Diversity Design, Synthesis, and Insecticidal Activity Analysis of Ester-Containing Isoxazoline Derivatives Acting on the GABA Receptor
作者:Caixia Zhang、Hanxiao Yuan、Yuge Hu、Xiuhuan Li、Yanqing Gao、Zhiqing Ma、Peng Lei
DOI:10.1021/acs.jafc.2c07910
日期:——
targeting the γ-aminobutyric acid (GABA) receptor, two series of novel isoxazoline derivatives containing sulfonic and carboxylic esters were designed and synthesized. Their insecticidal activities against Plutella xylostella, Mythimna separata, and Aedes aegypti larvae and their structure–activity relationship were investigated. The sulfonate-containing isoxazoline derivatives (10k–q) exhibited promising
为了探索针对γ-氨基丁酸(GABA)受体的杀虫剂,设计并合成了两个系列的新型含磺酸酯和羧酸酯的异恶唑啉衍生物。研究了它们对小菜蛾、粘虫和埃及伊蚊幼虫的杀虫活性及其构效关系。含磺酸盐的异恶唑啉衍生物( 10k-q )对三种昆虫幼虫表现出良好的杀虫活性。化合物10o对小菜蛾、分离小菜蛾和埃及伊蚊幼虫表现出优异的活性,48 h时的LC 50值分别为8.32、5.23和0.35 μg/mL,优于或接近阿维菌素。此外,化合物10o对M. separata表现出比阿维菌素更快的杀虫效果。通过分子对接、理论计算以及谷氨酸脱羧酶和谷氨酸丙酮转氨酶活性测定,初步验证了10o的作用模式。化合物10o是一种作用于GABA受体的新型杀虫候选药物,可以指导异恶唑啉杀虫剂的发现。