Synthesis and antifungal activity evaluation of novel pyridine derivatives as potential succinate dehydrogenase inhibitors
作者:Wenjing Jiang、Wei Cheng、Tingting Zhang、Tong Lu、Jingwen Wang、Yingkun Yan、Xiaorong Tang、Xuesong Wang
DOI:10.1016/j.molstruc.2022.133901
日期:2022.12
2p against succinate dehydrogenase (SDH) and their score in molecular docking were also more close to fluopyram, indicating the stronger antifungal activities of the four compounds were well associated with the affinities of these compounds in interacting with SDH. Therefore, we concluded that compounds 1 m, 2i, 2o, and 2p might be potential succinate dehydrogenase inhibitors (SDHIs), which was been
合成了两个系列的新型吡啶衍生物(1a -l、2a -l),并通过 IR、1 H NMR、13 C NMR 和 HRMS 对其进行了表征。化合物 1 h 和2l的晶体结构通过单晶 X 射线衍射进行了表征,并分别以单斜晶系和斜方晶系结晶。测定了合成化合物对五种植物病原真菌的体外抗真菌活性,即玉米赤霉、玉米蠕孢菌、立枯丝核菌、灰霉病菌和核盘菌大多数目标化合物在 20 mg/L 时显示出显着的抗真菌活性。其中,化合物1m、2i、2o和2p的抑菌率和中位效应浓度(EC 50 )更接近氟吡菌酰胺对灰霉病菌的抑制作用。同时,化合物1m、2i、2o、2p对琥珀酸脱氢酶(SDH)的半数抑制浓度(IC 50 )及其分子对接得分也更接近氟吡菌酰胺,表明四种化合物的抗真菌活性更强。与这些化合物与 SDH 相互作用的亲和力密切相关。因此,我们得出结论,化合物 1 m、2i、2o, 2p可能是潜在的琥珀酸脱氢酶抑制剂