期刊
JOURNAL OF LABELLED COMPOUNDS & RADIOPHARMACEUTICALS
卷 58, 期 4, 页码 180-182出版社
WILEY
DOI: 10.1002/jlcr.3275
关键词
radiosynthesis; 7-nAChR; microwave; [F-18]ASEM; PET chemistry
An improvement of the original radiochemical synthesis of [F-18]ASEM, an 7-nicotinic acetylcholinergic receptor radioligand, is reported. The new procedure utilizes microwave-assisted radiofluorination. In addition, a new preparative HPLC method was developed to eliminate a chemical impurity in the final product. Quality control procedures were also enhanced to improve detection of product with enhanced resolution of potential impurities. [F-18]ASEM was produced in 20.1 +/- 8.9% non-decay corrected (NDC) yield with an average synthesis time of 57min and an average specific radioactivity of 856 +/- 332GBq/mu mol (23 +/- 9Ci/mu mol).
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