Mosquito Acetylcholinesterase as a Target for Novel Phenyl-Substituted Carbamates
作者:James M. Mutunga、Ming Ma、Qiao-Hong Chen、Joshua A. Hartsel、Dawn M. Wong、Sha Ding、Max Totrov、Paul R. Carlier、Jeffrey R. Bloomquist
DOI:10.3390/ijerph16091500
日期:——
gave reduced activity against AgAChE and generally showed more activity against hAChE than AgAChE. Replacement of the 3-t-buyl group with CF3 resulted in poor anticholinesterase activity, but this compound did have measurable mosquitocidal activity. A series of methyl- and fluoro- analogs of 3-trialkylsilyl compounds were also synthesized, but unfortunately resulted in disappointing activity. Finally,
需要新的杀虫剂来控制病媒蚊子,这项研究评估了新型氨基甲酸酯乙酰胆碱酯酶(AChE)抑制剂的活性。对氨基甲酸酯的生化和毒理学表征是基于Terbam的母体结构,即3-叔丁基苯基甲基氨基甲酸酯。通过Ellman分析评估了体外酶抑制选择性(冈比亚按蚊对人),并通过世界卫生组织(WHO)纸接触分析评估了对整个昆虫的致死性。苯基C6位置的溴化增加了对两种AChE的抑制效力,而6碘取代基导致了效力丧失,并且两种卤化作用均导致灭蚊活性显着降低。同样,在C6处安装己基取代基会大大降低对AgAChE的抑制作用,但显示出对hAChE抑制作用的降低较小。母体化合物的一系列4-甲酰胺基类似物降低了对AgAChE的活性,并且通常显示出比对AgAChE更大的对hAChE的活性。用CF3取代3-t-buyl导致抗胆碱酯酶活性差,但该化合物确实具有可测量的灭蚊活性。还合成了一系列的3-三烷基甲硅烷基化合物的甲基和氟类似物,