کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1398249 | 1501236 | 2006 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and binding studies of epibatidine analogues as ligands for the nicotinic acetylcholine receptors Synthesis and binding studies of epibatidine analogues as ligands for the nicotinic acetylcholine receptors](/preview/png/1398249.png)
Neuronal nicotinic acetylcholine receptors (nAChRs) are transmembrane ligand-gated ion channels. Recent research demonstrated that selective nAChR ligands may have therapeutic potential in a number of CNS diseases and disorders. The alkaloid epibatidine is a highly potent non-opioid analgesic and nAChR agonist, but too toxic to be a useful ligand. To develop ligands selective for distinct nAChR subtypes and with reduced toxicity, a series of epibatidine and homoepibatidine analogues were synthesized. (±)-8-Methyl-3-(pyridin-3-yl)-8-azabicyclo[3,2,1]oct-2-ene, showed high affinity towards α4β2 (Ki = 2 nM), subtype selectivity (α4β2/α7 affinity ratio > 100) and relatively low toxicity in mice and can be labeled with 11C and 18F as positron emission tomography (PET) tracers for imaging of nAChRs.
A series of epibatidine analogues were synthesized. (±)-8-Methyl-3-(pyridin-3-yl)-8-azabicyclo[3,2,1]oct-2-ene showed high affinity towards α4β2 nAChRs (Ki = 2 nM) and subtype selectivity (α4β2/α7 affinity ratio > 100).Figure optionsDownload as PowerPoint slide
Journal: European Journal of Medicinal Chemistry - Volume 41, Issue 5, May 2006, Pages 640–650