Bivalent Carbamates as Novel Control Agents of the Malaria Mosquito, Anopheles gambiae
作者:James M. Mutunga、Qiao-Hong Chen、Dawn M. Wong、Polo C-H. Lam、Jianyong Li、Maxim M. Totrov、Aaron D. Gross、Paul R. Carlier、Jeffrey R. Bloomquist
DOI:10.2533/chimia.2016.704
日期:——
Widespread pyrethroid resistance has caused an urgent need to develop new insecticides for control of the malaria mosquito, Anopheles gambiae. Insecticide discovery efforts were directed towards the construction of bivalent inhibitors that occupy both the peripheral and catalytic sites of the mosquito acetylcholinesterase (AChE). It was hypothesized that this approach would yield a selective, high
广泛的拟除虫菊酯抗药性迫切需要开发新的杀虫剂来控制疟疾冈比亚按蚊。杀虫剂的发现工作致力于构建同时占据蚊子乙酰胆碱酯酶(AChE)的外围和催化位点的二价抑制剂。假设该方法将产生选择性的高效抑制剂,该抑制剂还可以规避引起靶位点抗性的已知催化位点突变(例如G119S)。因此,制备了一系列具有可变长度的烷基链接头以及其他修饰的二价邻苯二甲酰亚胺-吡唑氨基甲酸酯。活性最高的化合物是(1-(3-(1,3-二氧异吲哚啉-2-基)丙基)-1H-吡唑-4-基甲基氨基甲酸酯8a),其链长为三个碳原子,良好的蚊子抗胆碱酯酶活性,并且 选择性是人类AChE的5倍。此外,该化合物通过局部施用(LD50 = 63 ng /雌性)对蚊子有毒,在冈比亚按蚊的Akron菌株中只有6倍的交叉抗药性,对传统的氨基甲酸酯类杀虫剂具有50至60倍的抗药性。但是,WHO纸质分析中的接触杀伤力令人失望。讨论了这些结果对设计新的灭蚊剂的