作者:Xu, Dan、Lin, Guo-Tai、Huang, Jia-Chuan、Sun, Jian、Wang, Wei、Liu, Xili、Xu, Gong
DOI:10.1021/acs.jafc.4c02685
日期:——
has played a significant role in the development of fungicidal compounds. In this study, a variety of pyrazol-5-yl-phenoxybenzamide derivatives were synthesized and evaluated for their potential to act as succinate dehydrogenase inhibitors (SDHIs). The bioassay results indicate certain compounds to display a remarkable and broad-spectrum in their antifungal activities. Notably, compound 12x exhibited
二苯醚分子药效团在杀菌化合物的开发中发挥了重要作用。在这项研究中,合成了多种吡唑-5-基-苯氧基苯甲酰胺衍生物,并评估了它们作为琥珀酸脱氢酶抑制剂(SDHI)的潜力。生物测定结果表明某些化合物表现出显着且广谱的抗真菌活性。值得注意的是,化合物12x对Valsa mali 、 Gaeumannomyces graminis和Botrytis cinerea表现出显着的体外活性,EC 50值分别为0.52、1.46和3.42 mg/L。这些值低于或与Fluxapyroxad相当(EC 50分别 = 12.5、1.93 和 8.33 mg/L)。此外,化合物12x对核盘菌(EC 50 = 0.82 mg/L) 和立枯丝核菌(EC 50 = 1.86 mg/L) 显示出良好的抗真菌活性,尽管低于Fluxapyroxad (EC 50 = 0.23 和 0.62 mg/L)。进一步的体内实验表明,化合物12x在浓度为100