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  • Title: 6-[18F]Fluoro-A-85380: an in vivo tracer for the nicotinic acetylcholine receptor.
    Author: Scheffel U, Horti AG, Koren AO, Ravert HT, Banta JP, Finley PA, London ED, Dannals RF.
    Journal: Nucl Med Biol; 2000 Jan; 27(1):51-6. PubMed ID: 10755645.
    Abstract:
    6-[18F]Fluoro-3-(2(S)-azetidinylmethoxy)pyridine (6-[18F]fluoro-A-85380 or 6-[18F]FA), a new tracer for positron emission tomography, was synthesized by no-carrier-added [18F] fluorination of 6-iodo-3-((1-tert-butoxycarbonyl-2(S)-azetidinyl)methoxy)pyridine followed by acidic deprotection. 6-[18F]FA followed the regional densities of brain nicotinic acetylcholine receptors (nAChRs) reported in the literature. Evidence of binding to nAChRs and high specificity of the binding in vivo was demonstrated by inhibition with nAChR selective ligands as well as with unlabeled 6-FA. A preliminary toxicology study of the 6-FA showed a relatively low biological effect.
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