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首页> 外文期刊>Journal of pesticide science >Structure-activity relationships of positional isomers in aromatic heterocyclic carboxamide fungicides
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Structure-activity relationships of positional isomers in aromatic heterocyclic carboxamide fungicides

机译：芳香族杂环羧酰胺类杀菌剂中位置异构体的构效关系

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摘要

Positional isomers of various aromatic heterocyclic carboxamides were synthesized and their fungicidal activity was examined. Among them, N-(biphenyl-2-yl) and N-[2-(1,3-dimethylbutyl)-3-thienyl]-1-methyl-3-CF3-pyrazole-4-carboxamides showed high activity against gray mold, while their corresponding 5-CF3 carboxamide isomers showed no fungicidal activity. Similar results were observed for carboxamide isomers containing CF3-thiazole as well as methyl-substituted thiophene and furan derivatives. Docking studies were performed on these carboxamides with a fungus succinate dehydrogenase homology model. Based on our docking study, we proposed a model for the interaction between carboxamides and a conserved histidine residue in succinate dehydrogenase.
机译：合成了各种芳香杂环羧酰胺的位置异构体，并研究了其杀真菌活性。其中，N-（联苯-2-基）和N- [2-（1,3-二甲基丁基）-3-噻吩基] -1-甲基-3-CF3-吡唑-4-羧酰胺对灰霉病具有高活性。 ，而它们相应的5-CF3羧酰胺异构体则没有杀真菌活性。对于含有CF3-噻唑以及甲基取代的噻吩和呋喃衍生物的羧酰胺异构体，也观察到了相似的结果。用真菌琥珀酸脱氢酶同源性模型对这些羧酰胺进行了对接研究。根据我们的对接研究，我们提出了羧酰胺与琥珀酸脱氢酶中保守的组氨酸残基之间相互作用的模型。

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