Abstract FPyKYNE (2-fluoro-3-pent-4-yn-1-yloxypyridine) is a novel fluoropyridine-based structure, designed for the fluorine-18 labelling of macromolecules using copper-catalysed Huisgen 1, 3-dipolar cycloaddition (click chemistry). FPyKYNE (non-labelled as reference), as well as the 2-bromo, 2-nitro and 2-trimethylammonium analogues (as precursors for labelling with fluorine-18), was synthesized in 44, 95, 60 and 41%, respectively, from ...
[Inkster, James A. H.; Guerin, Brigitte; Ruth, Thomas J.; Adam, Michael J. Journal of Labelled Compounds and Radiopharmaceuticals, 2008 , vol. 51, # 14 p. 444 - 452]