Design, synthesis, and antifungal activity evaluation of novel 2-cyano-5-oxopentanoic acid derivatives as potential succinate dehydrogenase inhibitors
作者:Xue-song Wang、Xiao-rong Tang、Mi-jun Peng、Yong-zhan Mai
DOI:10.1007/s00044-021-02818-2
日期:2022.1
compounds 1c, 1g, 1k, and 2i against succinate dehydrogenase (SDH) and their score in molecular docking were both lower than carbendazim, indicating that these four compounds have stronger antifungal activities and affinities than carbendazim. Therefore, we conclude that compounds 1c, 1g, 1k, and 2i might be potential succinate dehydrogenase inhibitors (SDHIs).
设计、合成了两个系列的新型 2-氰基-5-氧代戊酸衍生物(1a-l、2a-l),并通过 IR、1 H NMR、13 C NMR 和 HRMS 对其进行表征。然后对五种植物病原真菌的体外抗真菌活性进行了评估,其中包括玉米赤霉,长蠕玉米小斑病,纹枯病,灰霉病和菌核病。化合物1c的单晶被测定并在具有空间群Fdd2的正交晶系中结晶。化合物的抑制率和中值效应浓度 (EC 50 )20 µg/mL 时,1c、1g、1k和2i比多菌灵对核盘菌的作用更好。同时,化合物1c、1g、1k和2i对琥珀酸脱氢酶(SDH)的半数抑制浓度(IC 50)和分子对接得分均低于多菌灵,表明这四种化合物的抗真菌活性和亲和力均强于多菌灵。多菌灵。因此,我们得出结论,化合物1c、1g、1k和2i 可能是潜在的琥珀酸脱氢酶抑制剂 (SDHI)。