Synthesis, biological activities and structure−activity relationships for new avermectin analogues
作者:Jian Zhang、Xiang Nan、Hai-Tao Yu、Pi-Le Cheng、Yan Zhang、Ying-Qian Liu、Shao-Yong Zhang、Guan-Fang Hu、Huanxiang Liu、An-Liang Chen
DOI:10.1016/j.ejmech.2016.05.056
日期:2016.10
LC50 values of 7.744, 5.634, 6.809, 7.939 and 52.234 μM, respectively. Furthermore, QSAR analysis showed that the molecular shape, size, connectivity degree and electronic distribution of avermectin analogues had substantial effects on insecticidal potency. These preliminary results provided useful insight in guiding further modifications of avermectin in the development of potential new insecticides.
为了发现具有良好杀虫活性的新分子,合成了40多种新的阿维菌素衍生物,并评估了它们对三种物种的蜘蛛,昆虫和线虫的生物活性,这些物种分别是朱砂叶螨(Tetranychus Cinnabarinus),蚜虫(Aphis craccivora)和松柏xylophilus。所有测试的化合物均显示出对三种昆虫的有效抑制活性。值得注意的是,大多数化合物对朱砂毛虫表现出高选择性,其中一些与阿维菌素相比具有更好的选择性。特别是化合物9j(LC 50:0.005μM)和16d(LC 50:0.002μM)对朱砂丁香的活性分别比阿维菌素(LC 50: 0.013μM )高2.5倍和4.7倍。此外,化合物9B,9D-F ,9H,9J,9升,9N,9P,9R,9V和17D显示了优良的活性与LC 50个相比的2.959-5.013μM的值1(LC 50: 6.746μM)对乙。松材线虫。同时,化合物9f,9g,9h和9m的杀虫活性针对A