Synthesis and insecticidal evaluation of novel N-pyridylpyrazolecarboxamides containing cyano substituent in the ortho-position
作者:Mingzhen Mao、Yuxin Li、Qiaoxia Liu、Yunyun Zhou、Xiulan Zhang、Lixia Xiong、Yongqiang Li、Zhengming Li
DOI:10.1016/j.bmcl.2012.11.045
日期:2013.1
In an attempt to search for potent insecticides targeting the ryanodine receptor (RyR), a series of novel N-pyridylpyrazolecarboxamides containing cyano substituent in the ortho-position were designed and synthesized. Their insecticidal activities of target compounds against oriental armyworm (Mythimna separata) and diamondback moth (Plutella xylostella) indicated that most of the compounds showed
为了寻找针对ryanodine受体(RyR)的有效杀虫剂,设计并合成了一系列在邻位含有氰基取代基的新型N-吡啶基吡唑甲酰胺。目标化合物对东方粘虫(Mythimna separata)和小菜蛾(Plutella xylostella)的杀虫活性表明,大多数化合物在测试浓度下均表现出中等至高活性。特别地,化合物6l和6o在0.1 mg / L的浓度下对小菜蛾有86%的杀幼虫活性,而化合物6h对小菜蛾的活性1 mg / L时,Mythimna分离率为80%。钙成像技术用于研究某些标题化合物对细胞内钙离子浓度([Ca 2+ ] i)的影响,实验结果表明,化合物6h在不存在钙离子的情况下刺激[Ca 2+ ] i中的瞬时升高。中枢神经元染料加载fluo-3 AM后的外部钙。但是,当中枢神经元用fluo-5 N染色并与2-APB孵育时,[Ca 2+ ] i通过化合物6h的处理而瞬时降低。 所有的钙成像技