Synthesis and Antifungal Activity of N-(Substituted pyridinyl)-1-methyl(phenyl)-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide Derivatives
作者:Zhibing Wu、Deyu Hu、Jiqing Kuang、Hua Cai、Shixi Wu、Wei Xue
DOI:10.3390/molecules171214205
日期:——
A series of N-(substituted pyridinyl)-1-methyl(phenyl)-3-trifluoromethyl-1H-pyrazole-4-carboxamide derivatives were synthesized. All target compounds were characterized by spectral data (1H-NMR, 13C-NMR, IR, MS) and elemental analysis and were bioassayed in vitro against three kinds of phytopathogenic fungi (Gibberella zeae, Fusarium oxysporum, Cytospora mandshurica). The results showed that some of the synthesized N-(substituted pyridinyl)-1-methyl-3-trifluoromethyl-1H-pyrazole-4-carboxamides exhibited moderate antifungal activities, among which compounds 6a, 6b and 6c displayed more than 50% inhibition activities against G. zeae at 100 µg/mL, which was better than that of the commercial fungicides carboxin and boscalid.
合成了一系列N-(取代吡啶基)-1-甲基(苯基)-3-三氟甲基-1H-吡唑-4-羧酰胺衍生物。所有目标化合物通过光谱数据(1H-NMR、13C-NMR、IR、MS)和元素分析进行了表征,并在体外对三种植物病原真菌(Gibberella zeae、Fusarium oxysporum、Cytospora mandshurica)进行了生物活性测试。结果表明,合成的一些N-(取代吡啶基)-1-甲基-3-三氟甲基-1H-吡唑-4-羧酰胺表现出中等的抗真菌活性,其中化合物6a、6b和6c在100 µg/mL时对G. zeae的抑制活性超过50%,优于商业杀菌剂carboxin和boscalid。