Carbon-14 radiosynthesis of the benzofuran derivative and<i>β</i>-amyloid plaque neuroimaging positron emission tomography radioligand AZD4694
作者:Johan Sandell
DOI:10.1002/jlcr.3029
日期:2013.5.30
In support of a metabolite study, the β-amyloid plaque neuroimaging positron-emission tomography radioligand AZD4694 was labeled with carbon-14 in 10 radiosynthetic steps starting from radiolabeled carbon dioxide. [14C]AZD4694 was labeled in the benzofuran heterocycle with a specific activity of 2.1 GBq/mmol and with a radiochemical purity of >99%. The described synthesis constitutes a general method to carbon-14-labeled substituted benzofurans.
为了支持代谢物研究,从放射性标记的二氧化碳开始,经过 10 个放射合成步骤,用碳-14 标记了 β 淀粉样斑块神经影像正电子发射断层扫描放射性配体 AZD4694。在苯并呋喃杂环中标记的[14C]AZD4694的比活度为2.1 GBq/mmol,放射化学纯度大于99%。所述合成方法是碳-14 标记取代苯并呋喃的通用方法。