A Potential Multitarget Insect Growth Regulator Candidate: Design, Synthesis, and Biological Activity of Novel Acetamido Derivatives Containing Hexacyclic Pyrazole Carboxamides
作者:Bingbo Guo、Lei Chen、Shihui Luo、Chunying Wang、Yanjiao Feng、Xiaoyang Li、Congwang Cao、Li Zhang、Qing Yang、Xiaoming Zhang、Xinling Yang
DOI:10.1021/acs.jafc.4c00312
日期:——
promising targets for the development of novel insecticides such as IGRs. Our previous work identified a dual-target compound 6j, which could act simultaneously on both EcR and OfChtI. In the present study, 6j was first found to have inhibitory activities against OfChtII and OfChi-h, too. Subsequently, taking 6j as a lead compound, 19 novel acetamido derivatives were rationally designed and synthesized
昆虫生长调节剂(IGRs)是重要的绿色杀虫剂,通过扰乱昆虫的正常生长发育来减少害虫对农作物的危害。蜕皮激素受体(EcR)和ChtI 、 ChtII和Chi -h三种几丁质酶与昆虫的蜕皮阶段密切相关。因此,它们被认为是开发 IGR 等新型杀虫剂的有希望的目标。我们之前的工作确定了一种双靶点化合物6j ,它可以同时作用于 EcR 和Of ChtI。在本研究中,首次发现6j对Of ChtII 和Of Chi-h 也具有抑制活性。随后,以6j为先导化合物,利用6j与EcR和三种几丁质酶结合空腔的灵活性,通过在酰胺桥上引入乙酰氨基部分,合理设计合成了19种新型乙酰氨基衍生物。然后,开展了它们对小菜蛾( P. xylostella )、亚洲玉米螟( O.furnacalis )和草地贪夜蛾( S. frugiperda )的杀虫活性。生物测定结果表明,大多数乙酰氨基衍生物对三种鳞翅目害虫具有中等至良好