Synthesis and pharmacology of Alkanediguanidinium compounds that block the neuronal nicotinic acetylcholine receptor
作者:Mercedes Villarroya、Luis Gandía、Manuela G. López、Antonio G. García、Sénida Cueto、José-Luis García-Navio、Julio Alvarez-Builla
DOI:10.1016/0968-0896(96)00108-3
日期:1996.8
Taking as models the polyamine toxin fraction FTX from the funnel-web spider venom, and the guanidinium moiety of guanethidine, a series of azaalkane-1, omega-diguanidinium salts were obtained. Some of them blocked ion fluxes through the neuronal nicotinic receptors for acetylcholine (nAChR). The blockade was exerted at submicromolar concentrations, suggesting a highly selective interaction with the
In the present paper, we wish to report the synthesis and antinociceptive activity of a series of new azaalkane bis(2-aminoimidazolinium) compounds from which, N,N'-di(4,5-dihydro-1H-imidazol-2-yl)-3-aza-1,6-hexanediamine 2a has shown the best analgesic properties in vivo in two different assays (i.e., acetic acid-induced writhing test and hot-plate test in mice), as well as oral bioavailability. (C) 2003 Elsevier Science Ltd. All rights reserved.