Preparation of Matrinic/Oxymatrinic Amide Derivatives as Insecticidal/Acaricidal Agents and Study on the Mechanisms of Action against <i>Tetranychus cinnabarinus</i>
作者:Hui Xu、Ming Xu、Zhiqiang Sun、Shaochen Li
DOI:10.1021/acs.jafc.9b05092
日期:2019.11.6
cinnabarinus, it suggested that the open lactam ring of matrine and carboxyl group and (4-methyl)phenylsulfonyl of N-(4-methyl)phenylsulfonylmatrinic acid (3b) were necessary for action with α2, α4, α5, and β3 nAChR subunits; compound 3b was an inhibitor of AChE in T. cinnabarinus, and AChE was one possible target of action in T. cinnabarinus against 3b; and compound 3b may be an antagonist of nAChR
在继续开发基于天然产物的杀虫候选物的计划中,通过苦参碱的结构优化获得了苦参碱/氧化苦参胺。N '-(4-氟)苯基-N-(4-溴)苯基磺酰氧基rin酰胺(IIm)对分离的Mythimna separata具有较强的杀虫活性。N-(Un)取代的苯磺酰matrinic酸(3a – c)表现出有希望的杀螨活性对朱砂叶螨(Tetranychus cinnabarinus)。通过qRT-PCR分析nAChR亚基和AChE基因并确定(未处理)朱砂丁香的AChE活性,这表明与α2,α4,α5和β3nAChR亚基作用时,苦参碱和羧基的内酰胺开环和N-(4-甲基)苯基磺酰基matrinic acid(3b)的(4-甲基)苯基磺酰基是必需的;化合物3b是朱砂中乙酰胆碱酯酶(AChE)的抑制剂,而乙酰胆碱酯酶(AChE)是朱砂中对抗3b的可能作用靶之一; 化合物3b可能是朱砂纲中nAChR和AChE的拮抗剂。