Synthesis and biological activity of a novel class nicotinic acetylcholine receptors (nAChRs) ligands structurally related to anatoxin-a
作者:Daniele Simoni、Riccardo Rondanin、Paolo Marchetti、Cinzia Rullo、Riccardo Baruchello、Giuseppina Grisolia、Giuseppina Barbato、Riccardo Giovannini、Carla Marchioro、Anna Maria Capelli、Caterina Virginio、Andrea Bozzoli、Pier Andrea Borea、Stefania Merighi、Daniele Donati
DOI:10.1016/j.bmcl.2011.06.127
日期:2011.9
The introduction of the isoxazole ring as bioisosteric replacement of the acetyl group of anatoxin-a led to a new series of derivatives binding to nicotinic acetylcholine receptors. Bulkier substitutions than methyl at the 3 position of isoxazole were shown to be detrimental for the activity. The binding potency of the most interesting compounds with α1, α7 and α3β4 receptor subtypes, was, anyway,
引入异恶唑环作为anatoxin-a乙酰基的生物等位取代,导致了一系列与烟碱乙酰胆碱受体结合的衍生物。在异恶唑的3位上比甲基更庞大的取代被证明对活性是有害的。无论如何,最有趣的具有α1,α7和α3β4受体亚型的化合物的结合力仅在微摩尔水平上。而且,不同于已知的具有吡啶的衍生物,缩合到氮杂双环的异恶唑没有活性。