The application of “plug-in molecules” method in novel strobilurin fungicides screening
作者:Xuelian Liu、Dongyan Yang、Fahong Yin、Jia-Qi Li、Yumei Xiao、Bin Fu、Zhaohai Qin
DOI:10.1039/d0ra06263d
日期:——
molecular” method, a series of novel strobilurin derivatives with aryloxypyridinyl-1-ethanone oxime side chains were designed, synthesized, and screened. The biological activity experiment showed that they had an excellent fungicidal effect on plant pathogens, especially Sclerotinia sclerotiorum. Compounds 5-01 and 5-09 had significant fungicidal activity and broad fungicidal spectrum. The structure–activity
基于“插件分子”方法,设计、合成并筛选了一系列具有芳氧基吡啶基-1-乙酮肟侧链的新型甲氧基丙烯酸酯衍生物。生物活性实验表明,它们对植物病原菌,特别是核盘菌具有优良的杀菌作用。化合物5-01和5-09具有显着的杀菌活性和较广的杀菌谱。构效关系表明,顺式构型、增加药效基团数量、吡啶环2位的取代以及苯环上氯原子的引入均不利于该类化合物的杀菌活性。 3D-QSAR模型表明在苯环4位引入大的正电基团和在苯环2位引入小负电基团有利于杀菌活性,设计了化合物6 。与嘧菌酯相比,化合物6-02对核盘菌( Sclerotinia sclerotiorum (Lib.) de Bary)具有更有效的杀菌作用。细胞毒性试验和透射电镜结果表明,“插件分子”方法对嗜球果伞素类杀菌剂进行修饰,不会影响其毒性和作用机制。 “插件分子”方法是筛选高活性化合物的有效方法,对于创造新的农药分子具有重要的指导意义。