Larvicidal activity and in silico studies of cinnamic acid derivatives against Aedes aegypti (Diptera: Culicidae)
作者:Saraliny Bezerra França、Luana Carine Barros de Lima、Cristhyan Rychard da Silva Cunha、Daniela Santos Anunciação、Edeildo Ferreira da Silva-Júnior、Maria Ester de Sá Barreto Barros、Dimas José da Paz Lima
DOI:10.1016/j.bmc.2021.116299
日期:2021.8
Cinnamic acid derivatives (CAD's) represent a great alternative in the search for insecticides against Aedes aegypti mosquitoes since they have antimicrobial and insecticide properties. Ae. aegypti is responsible for transmitting Dengue, Chikungunya, and Zika viruses, among other arboviruses associated with morbimortality, especially in developing countries. In view of this, in vitro analyses of n-substituted
肉桂酸衍生物 (CAD) 是寻找抗埃及伊蚊的杀虫剂的绝佳替代品,因为它们具有抗菌和杀虫特性。艾。埃及虫负责传播登革热、基孔肯雅热和寨卡病毒,以及其他与死亡率相关的虫媒病毒,尤其是在发展中国家。鉴于此,对Ae 的4 龄幼虫 (L4)进行了n-取代肉桂酸和酯的体外分析。aegypti以及分子对接研究,以提出针对这种蚊子物种的潜在生物目标。杀幼虫试验证明n-取代的肉桂酸乙酯显示出比其相应的酸更显着的活性,其中对氯肉桂酸( 3j ) 的 LC 50值为 8.3 µg/mL。因此,暴露于化合物3j的蚊子组的外部形态学改变(僵硬和拉长的身体、弯曲的肠以及半透明或变暗的肛门乳头), 用显微镜观察。此外,还开发了一种分析方法,通过使用带 UV 检测的高效液相色谱 (HPLC-UV) 对最有希望的类似物进行定量。分子对接研究表明,杀幼虫作用与乙酰胆碱酯酶 (AChE) 的抑制有关。因此,扩大肉桂酸衍生物对载