期刊
JOURNAL OF LABELLED COMPOUNDS & RADIOPHARMACEUTICALS
卷 45, 期 12, 页码 1005-1010出版社
WILEY
DOI: 10.1002/jlcr.617
关键词
nicotinamide; Vilsmeier reaction; alkaline hydrolysis; iminium ions; propyl benzenecarboximidoate
A method of preparing O-18-labelled nicotinamide, involving cyanopyridine, H-2 O-18, and 1,1'3,3'-tetramethylguanidine as a catalyst is described. The desired product is produced in 91% chemical yield and 97.5% isotopic incorporation. Copyright (C) 2002 John Wiley Sons, Ltd.
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