Semisynthesis of Matrinic Acid/Alcohol/Ester Derivatives, Their Pesticidal Activities, and Investigation of Mechanisms of Action against <i>Tetranychus cinnabarinus</i>
作者:Bingchuan Zhang、Zhiqiang Sun、Min Lv、Hui Xu
DOI:10.1021/acs.jafc.8b04965
日期:2018.12.12
acid/alcohol/ester derivatives were synthesized by structural modifications of a quinolizidine alkaloid matrine. N-(4-Methyl)benzylmatrinyl n-decylate (76) and N-(2-chloro)benzylmatrinyl n-undecylate (86) exhibited greater than seven-fold more pronounced acaricidal activity than matrine against Tetranychus cinnabarinus; N-(2-chloro)benzylmatrinyl benzoate (80) showed the most promising insecticidal activity
为了发现新的以天然产物为基础的潜在农药,通过对喹喔啉生物碱苦参碱进行结构修饰,合成了85种马来酸/醇/酯衍生物。ñ - (4-甲基)benzylmatrinyl Ñ -decylate(76)和ñ - (2-氯)benzylmatrinyl Ñ -undecylate(86)呈现出大于7倍对苦参碱更明显杀螨活性朱砂叶螨; N-(2-氯)苄基rin基苯甲酸酯(80)对Mythimna separata表现出最有希望的杀虫活性。硬脂酸的羧基和n的引入-癸基/ n-十一烷基羰基转化为马汀醇对于杀螨活性很重要;对于杀虫活性而言,将烷氧基引入马来酸的羧基中以及在马来酸酯的N-苄基上引入吸电子基团是必需的。通过RT-PCR和qRT-PCR分析,表明苦参碱的内酰胺环对于作用于VGSC至关重要。苦参碱的内酰胺开环和侧链的烷基羰基是影响α1,α2和α4nAChR亚基的两个重要因素。α1,α2,α4和β3亚基