Bioactivity and structure–activity relationship of cinnamic acid derivatives and its heteroaromatic ring analogues as potential high-efficient acaricides against Psoroptes cuniculi
作者:Dong-Dong Chen、Bing-Yu Zhang、Xiu-Xiu Liu、Xing-Qiang Li、Xin-Juan Yang、Le Zhou
DOI:10.1016/j.bmcl.2017.08.051
日期:2018.4
A series of cinnamic acid derivatives and its heteroaromatic ring analogues were synthesized and evaluated for acaricidal activity in vitro against Psoroptes cuniculi, a mange mite. Among them, eight compounds showed the higher activity with median lethal concentrations (LC50) of 0.36–1.07 mM (60.4–192.1 µg/mL) and great potential for the development of novel acaricidal agent. Compound 40 showed both
合成了一系列肉桂酸衍生物及其杂芳族环类似物,并评价了其对against螨(Psoroptes cuniculi)的体外杀螨活性。其中,有8种化合物显示出更高的活性,中位致死浓度(LC 50)为0.36–1.07 mM(60.4–192.1 µg / mL),并且具有开发新型杀螨剂的巨大潜力。化合物40的最低LC 50值为0.36 mM(60.4 µg / mL),最小中值致死时间(LT 50)在4.5 mM时为2.6 h,与伊维菌素相当[LC 50 = 0.28 mM(247.4 µg / mL) ,LT 50 = 8.9 h],这是一种杀螨药物标准。SAR分析表明,羰基对活性至关重要。酯部分中烷氧基的类型和链长以及酯基附近的空间位阻显着影响活性。该酯比相应的硫羟酸酯,酰胺,酮或酸更具活性。用α-吡啶基或α-呋喃基取代肉桂酸酯的苯基会显着提高活性。因此,出现了一系列具有优异杀螨活性的肉桂酸酯及其杂芳族环类似物。