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SCIENTIFIC LITERATURE · MED

Production of 6-l-[<sup>18</sup>F]Fluoro-<i>m</i>-tyrosine in an Automated Synthesis Module for <sup>11</sup>C-Labeling.

Molecules · 2021-09-13

DOI: 10.3390/molecules26185550PMID: 34577021

Open accessresearch-article; Journal ArticleOriginal source ↗

Research overview

The text below is the source article’s original abstract under a verified reuse license. cc by

6-l-[18F]Fluoro-m-tyrosine (6-l-[18F]FMT) represents a valuable alternative to 6-l-[18F]FDOPA which is conventionally used for the diagnosis and staging of Parkinson's disease. However, clinical applications of 6-l-[18F]FMT have been limited by the paucity of practical production methods for its automated production. Herein we describe the practical preparation of 6-l-[18F]FMT using alcohol-enhanced Cu-mediated radiofluorination of Bpin-substituted chiral Ni(II) complex in the presence of non-basic Bu4ONTf using a volatile iPrOH/MeCN mixture as reaction solvent. A simple and fast radiolabeling procedure afforded the tracer in 20.0 ± 3.0% activity yield within 70 min. The developed method was directly implemented onto a modified TracerLab FX C Pro platform originally designed for 11C-labeling. This method enables an uncomplicated switch between 11C- and 18F-labeling. The simplicity of the developed procedure enables its easy adaptation to other commercially available remote-controlled synthesis units and paves the way for a widespread application of 6-l-[18F]FMT in the clinic.

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