Synthesis, biological evaluation and molecular docking of novel nereistoxin derivatives containing phosphonates as insecticidal/AChE inhibitory agents
作者:Qiaoli Yan、Xiaogang Lu、Jin Wang、Zixuan Zhang、Runli Gao、Chengxin Pei、Hongmei Wang
DOI:10.1039/d3ra08004h
日期:2024.1.23
aimed at the discovery and development of natural product-based insecticidal agents, a series of novel nereistoxin derivatives containing phosphonate were synthesized and characterized by 31P, 1H, 13C NMR and HRMS. The bioactivities of the derivatives were evaluated for the acetylcholinesterase (AChE) inhibition potency and insecticidal activity. The AChE inhibitory effects of the derivatives were investigated
为了继续我们旨在发现和开发基于天然产物的杀虫剂的计划,合成了一系列含有膦酸盐的新型海藻毒素衍生物,并通过 31P、1H、13C NMR 和 HRMS 进行了表征。评估衍生物的生物活性乙酰胆碱酯酶 (AChE) 抑制效力和杀虫活性。使用体外 Ellman 方法研究衍生物的 AChE 抑制作用。一半的化合物表现出对 AChE 的极好抑制作用。在体内评估了所有化合物对 Mythimna separate (Walker) 和 Rhopalosiphum padi 的杀虫活性。一些衍生物对 Rhopalosiphum padi 显示出有希望的杀虫活性。化合物 5b 和 6a 对 R. padi 表现出最高的活性,LC50 值分别为 17.14 和 18.28 μg mL-1,接近商业杀虫剂氟尼科酰胺 (LC50 = 17.13 μg mL-1)。化合物 9g 也显示出显著的杀虫活性,LC50 值为