Design, Synthesis and Antifungal/Nematicidal Activity of Novel 1,2,4-Oxadiazole Derivatives Containing Amide Fragments
作者:Dan Liu、Ling Luo、Zhengxing Wang、Xiaoyun Ma、Xiuhai Gan
DOI:10.3390/ijms23031596
日期:——
recent years. However, there are few pesticide chemicals that can be used for the joint control of fungi and nematodes on the market. To solve this problem, a series of novel 1,2,4-oxadiazole derivatives containing amide fragments were designed and synthesized. Additionally, the bioassays revealed that the compound F15 demonstrated excellent antifungal activity against Sclerotinia sclerotiorum (S.
近年来,由真菌和线虫引起的植物病害日益严重。但目前市场上可用于真菌和线虫联合防治的农药化学品少之又少。为解决这一问题,设计合成了一系列新型含酰胺片段的1,2,4-恶二唑衍生物。此外,生物测定表明,化合物F15在体外对核盘菌(S. sclerotiorum)表现出优异的抗真菌活性,其EC50值为2.9 μg/mL,与常用的杀菌剂噻吩菌胺和氟吡菌酰胺相当。同时,F15 在体内对 S. sclerotiorum 感染的油菜表现出优异的治疗和保护活性。扫描电镜结果显示,S. 用F15处理的菌核变得异常塌陷和萎缩,从而抑制菌丝的生长。此外,F15对核盘菌的琥珀酸脱氢酶(SDH)表现出良好的抑制作用(IC50 = 12.5 μg/mL),分子对接证实了化合物F15与SDH的结合方式和结合能力。此外,化合物F11在200 μg/mL时对南方根结线虫表现出优异的杀线虫活性,校正死亡率为93.2%,高于噻沙