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Novel furazanoazepines derivatives as SDH inhibitors: Design, synthesis and their fungicidal activities

文献类型： 外文期刊

作者： Ren, Xingyu 1 ; Pu, Jiangping 1 ; Fu, Hanghang 1 ; Lei, Bin 2 ; Zhang, Yibo 1 ; Jin, Lu 1 ; Pan, Le 1 ;

作者机构： 1.Xinjiang Agr Univ, Coll Chem & Chem Engn, Urumqi 830052, Peoples R China

2.Xinjiang Acad Agr Sci, Biotechnol Inst Nucl Technol, Urumqi 830052, Peoples R China

关键词： Furazanoazepines derivatives; Antifungal activity; 3D-QASR; Molecular docking

期刊名称：BIOORGANIC CHEMISTRY （ 影响因子：4.7； 五年影响因子：4.9 ）

ISSN： 0045-2068

年卷期： 2025 年 157 卷

页码：

收录情况： SCI

摘要： Plant pathogenic fungi are the damage causes of agriculture and food losses, and novel fungicides is an urgent need for dealing with the increasing resistance. Herein, 37 furazanoazepines derivatives were efficiently synthesized and their antifungal activities against four phytopathogenic fungi were investigated to obtain many effective compounds. Notably, compound 4h was found to exhibited excellent in vitro and in vivo activity against Alternaria alternata, which was obviously better than the positive control osthole. The scanning electron microscopy (SEM) study revealed that compound 4h could cause significant morphological damage of hyphae. Molecular docking indicated that compound 4h could interact with succinate dehydrogenase (SDH) by forming hydrogen bond with the Leu305 residue at the active site. Enzymatic activity assays proved that the compound 4h could inhibit SDH with the IC50 value of 3.59 mu g/mL, which was better than that of commercial SDHI boscalid (IC50 value = 4.16 mu g/mL). The structure-activity relationships of the compounds were studied by 3D-QSAR analysis to provide guidance for the further modification. It was concluded that furazanoazepines were promising for the further study to explore the potential agricultural fungicides.

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