Tricyclic cyanoguanidines: synthesis, site of action and insecticidal activity of a novel class of reversible acetylcholinesterase inhibitors
作者:Bruce L. Finkelstein、Eric A. Benner、Maura C. Hendrixson、Kevin T. Kranis、James J. Rauh、Maya R. Sethuraman、Stephen F. McCann
DOI:10.1016/s0968-0896(01)00326-1
日期:2002.3
Bridged-tricyclic cyanoguanidines 1 were found to be active as insecticides. The preparation and structure-activity relationships of oxacyclic (X=O) and carbocyclic (X=CH2) analogues of 1 is described. Compounds 1 were found to inhibit acetylcholinesterase with IC50 values comparable to the organophosphate Paraoxon. Unlike organophosphates. cyanoguanidines 1 were shown to reversibly bind acetylcholinesterase. This mode of action is shared by the structurally-related natural product Huperzine A. (C) 2002 Elsevier Science Ltd. All rights reserved.