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Ascertaining the suitability of aryl sulfonyl fluorides for [18F]radiochemistry applications: a systematic investigation using microfluidics. | LitMetric
Optimization of [(18)F]radiolabeling conditions and subsequent stability analysis in mobile phase, PBS buffer, and rat serum of 12 aryl sulfonyl chloride precursors with various substituents (electron-withdrawing groups, electron-donating groups, increased steric bulk, heterocyclic) were performed using an Advion NanoTek Microfluidic Synthesis System. A comparison of radiochemical yields and reaction times for a microfluidics device versus a conventional reaction vessel is reported. [(18)F]Radiolabeling of sulfonyl chlorides in the presence of competing nucleophiles, H-bond donors, and water was also assessed and demonstrated the versatility and potential utility of [(18)F]sulfonyl fluorides as synthons for indirect radiolabeling.
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