Abstract :
[en] The alkyne-azide Cu(I)-catalyzed Huisgen cycloaddition, a click type reaction was used to label a peptide with
fluorine-18. A novel solid phase synthesis approach for the preparation of clickable peptides has been developed
and has also permitted the straightforward preparation of reference compounds. A complementary azide labeling
agent (1-(azidomethyl)-4-[18F]-fluorobenzene) has been produced in a four step procedure in 75 min with a 34%
radiochemical yield (decay corrected). Conjugation of [18F]fluoroazide with a model alkyne-neuropeptide produced
the desired 18F-radiolabeled peptide in less than 15 min with a yield of 90% and excellent radiochemical purity
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