Design, synthesis, DFT study and antifungal activity of the derivatives of pyrazolecarboxamide containing thiazole or oxazole ring
作者:Zhongzhong Yan、Aiping Liu、Mingzhi Huang、Minhua Liu、Hui Pei、Lu Huang、Haibo Yi、Weidong Liu、Aixi Hu
DOI:10.1016/j.ejmech.2018.02.036
日期:2018.4
Pyrazolecarboxamide fungicides are one of the most important classes of agricultural fungicides, which belong to succinodehydrogenase inhibitors (SDHIS). To discover new pyrazolecarboxamide analogues with broad spectrum and high activity, a class of new compounds of pyrazole carboxamide derivatives containing thiazole or oxazole ring were designed by scaffold hopping and bioisosterism, and 36 pyrazole
吡唑甲酰胺类杀菌剂是最重要的农业杀菌剂之一,属于琥珀酸脱氢酶抑制剂(SDHIS)。为发现具有广谱和高活性的新型吡唑羧酰胺类似物,通过支架跳跃和生物立体异构化设计了一类新型的含噻唑或恶唑环的吡唑羧酰胺衍生物,合成了36种具有抗真菌活性的吡唑羧酰胺衍生物。对这些化合物针对五种植物病原真菌,玉米赤霉菌,辣椒疫霉菌,菌核盘菌,小粒小麦和高粱锈菌进行了评估。结果表明,大多数化合物表现出良好的杀真菌活性,特别是对E. graminis。理论计算是在B3LYP / 6-31G上进行的(d,