Solid-Phase synthesis and pharmacological evaluation of analogues of PhTX-12—A potent and selective nicotinic acetylcholine receptor antagonist
作者:Kristian Strømgaard、Ian R Mellor、Kim Andersen、Ioana Neagoe、Florentina Pluteanu、Peter N.R Usherwood、Povl Krogsgaard-Larsen、Jerzy W Jaroszewski
DOI:10.1016/s0960-894x(02)00120-8
日期:2002.4
Philanthotoxin-12 (PhTX-12) is a novel potent and selective, noncompetitive antagonist of nicotinic acetylcholine receptors (nAChRs). Homologues of PhTX-12 with 7-11 methylene groups between the primary amino group and the aromatic head-group were synthesized using solid-phase methodology. In vitro electrophysiological studies of nAChR demonstrated that decreasing the number of methylene groups from
Philanthotoxin-12(PhTX-12)是烟碱乙酰胆碱受体(nAChRs)的新型有效,选择性,非竞争性拮抗剂。使用固相方法合成了在伯氨基和芳族头基之间具有7-11个亚甲基的PhTX-12的同系物。nAChR的体外电生理研究表明,亚甲基的数量从12个减少到11个会显着提高效力。与PhTX-12一样,PhTX-11的拮抗作用只是弱电压依赖性的。当亚甲基间隔基进一步降低时,拮抗作用降低至低于PhTX-12的拮抗作用,在某些情况下,可观察到ACh应答增强高达60%。