Design, Synthesis, and Biological Activity of Novel Fungicides Containing a 1,2,3,4-Tetrahydroquinoline Scaffold and Acting as Laccase Inhibitors
作者:Xiaoming Zhang、Huan Xu、Huifei Su、Xinling Yang、Tengda Sun、Xingxing Lu、Fasheng Shi、Hongxia Duan、Xili Liu、Yun Ling
DOI:10.1021/acs.jafc.1c06595
日期:2022.2.16
it has applications in the discovery of new pesticides. In this work, PMDD-5Y was selected as a lead compound, and we designed and synthesized a series of novel sulfonyl hydrazide derivatives containing the natural product scaffold 1,2,3,4-tetrahydroquinoline. The new compounds had antifungal activities against several fungi, especially Valsa mali and Sclerotinia sclerotiorum. One compound (4bl) displayed
漆酶是杀菌剂的新靶标。我们之前开发了一种新的杀菌剂,4-氯肉桂醛氨基硫脲 (PMDD-5Y),作为漆酶抑制剂。将天然产物的活性基团引入农药分子结构框架中,是发现活性先导化合物的有效方法,在新农药的发现中具有应用价值。本工作以PMDD-5Y为先导化合物,设计合成了一系列含有天然产物支架1,2,3,4-四氢喹啉的新型磺酰肼衍生物。新化合物对几种真菌具有抗真菌活性,尤其是Valsa mali和Sclerotinia sclerotiorum。一种化合物 ( 4bl ) 表现非常好对核盘菌和马里弧菌的体外活性,EC 50值分别为 3.32 和 2.78 μg/mL。酶活性测定结果表明,4bh对漆酶的抑制活性最好,EC 50值为14.85 μg/mL。这比先导化合物 PMDD-5Y 和阳性对照半胱氨酸更活跃。使用分子对接方法,我们研究了标题化合物与漆酶的结合模式。这些新型漆酶抑制剂作为杀菌剂的结构特