Synthesis of 6-chloro-3-((2-(S)-azetidinyl)methoxy)-5-(2-[18F]fluoropyridin-4-yl)pyridine ([18F]NIDA 522131), a novel potential radioligand for studying extrathalamic nicotinic acetylcholine receptors by PET
作者:Yi Zhang、Andrew G. Horti
DOI:10.1002/jlcr.883
日期:2004.11
6-Chloro-3-((2-(S)-azetidinyl)methoxy)-5-(2-[18F]fluoropyridin-4-yl)pyridine ([18F]NIDA 522131), a potential radioligand for studying extrathalamic nicotinic acetylcholine receptors by positron-emission tomography, was synthesized via no-carrier-added nucleophilic [18F]fluorination of 6-chloro-3-((1-(tert-butoxycarbonyl)-2-(S)-azetidinyl)methoxy)-5-(2-iodopyridin-4-yl)vinyl)pyridine, followed by acidic deprotection. The overall radiochemical yield of the radiosynthesis was 4–8% (non-decay-corrected), the specific radioactivity was in the range of 167–335 GBq/µmol (4500–9000 mCi/µmol) and the radiochemical purity was greater than 99%. Preparation of [18F]NIDA522131 via corresponding bromo-derivative 2 is also described. Copyright © 2004 John Wiley & Sons, Ltd.
6-氯-3-((2-(S)-氮杂环丁基)甲氧基)-5-(2-[18F]氟吡啶-4-基)吡啶([18F]NIDA 522131)是一种潜在的放射性配体,可通过正电子发射断层扫描研究丘脑外烟碱型乙酰胆碱受体,它是通过6-氯-3-((1-(叔丁氧羰基)-2-(S)-氮杂环丁基)甲氧基)-5-(2-碘吡啶-4-基)乙烯基)吡啶的无载体添加亲核[18F]氟化,然后进行酸性脱保护合成的。放射性合成的总放射化学产率为4-8%(未校正衰变),比活度范围为167-335 GBq/µmol(4500-9000 mCi/µmol),放射化学纯度大于99%。还描述了通过相应的溴衍生物2制备[18F]NIDA522131的方法。版权所有 © 2004 John Wiley & Sons, Ltd.