Design, Synthesis and Fungicidal Activity of N-(thiophen-2-yl) Nicotinamide Derivatives
作者:Hongfei Wu、Xingxing Lu、Jingbo Xu、Xiaoming Zhang、Zhinian Li、Xinling Yang、Yun Ling
DOI:10.3390/molecules27248700
日期:——
Based on the modification of natural products and the active substructure splicing method, a series of new N-(thiophen-2-yl) nicotinamide derivatives were designed and synthesized by splicing the nitrogen-containing heterocycle natural molecule nicotinic acid and the sulfur-containing heterocycle thiophene. The structures of the target compounds were identified through 1H NMR, 13C NMR and HRMS spectra
基于天然产物的修饰和活性亚结构拼接方法,将含氮杂环天然分子烟酸和含硫杂环拼接设计合成了一系列新型N-(噻吩-2-基)烟酰胺衍生物噻吩。目标化合物的结构通过1H NMR、13C NMR和HRMS谱进行了鉴定。所有化合物在温室中对黄瓜霜霉病(CDM,Pseudoperonospora cubensis (Berk.et Curt.) Rostov.)的体内生物测定结果表明,化合物 4a (EC50 = 4.69 mg/L) 和 4f (EC50 = 1.96 mg /L) 表现出优异的杀菌活性,高于双氟草胺 (EC50 = 21.44 mg/L) 和氟吗啉 (EC50 = 7.55 mg/L)。针对 CDM 的田间试验的生物测定结果表明,化合物 4f 的 10% EC 制剂显示出优异的功效(分别为 70% 和 79% 的控制效果,分别为 100 mg/L 和 200 mg/L),优于那些两种商业杀真菌剂