Design, Synthesis, and Pesticidal Activities of Pyrimidin-4-amine Derivatives Bearing a 5-(Trifluoromethyl)-1,2,4-oxadiazole Moiety
作者:Xing-Hai Liu、Yong-Hui Wen、Long Cheng、Tian-Ming Xu、Ning-Jie Wu
DOI:10.1021/acs.jafc.1c00236
日期:2021.6.30
insecticidal and fungicidal activity. The LC50 values were 3.57 ± 0.42, 4.22 ± 0.47, and 3.14 ± 0.73 mg/L for U7, U8, and flufenerim against M. separata, respectively. The EC50 values were 24.94 ± 2.13, 30.79 ± 2.21, and 3.18 ± 0.21 mg/L for U7, U8, and azoxystrobin against P. cubensis, respectively. The AChE enzymatic activity testing revealed that the enzyme activities of compounds U7, U8, and flufenerim
由于农药耐药性的不断演变,发现具有新作用模式的新农药非常重要。在这项研究中,设计并合成了一系列含有 5-(三氟甲基)-1,2,4-恶二唑部分的新型嘧啶-4-胺衍生物。它们的结构经1 H NMR、13 C NMR 和 HRMS证实。生物测定表明,化合物29对合成具有优异的杀虫活性粘虫,蚜虫medicagini,和朱砂叶螨和杀真菌活性抗霜霉病。在这些嘧啶-4-胺类化合物中,5-氯-N-(2-fluoro-4-(5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl)benzyl)-6-(1-fluoroethyl)pyrimidin-4-amine ( U7 ) and 5-bromo- N -(2-fluoro-4-(5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl)benzyl)-6-(1-fluoroethyl)pyrimidin-4-amine(