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Fig. 2 | EJNMMI Radiopharmacy and Chemistry

Fig. 2

From: Automated radiosynthesis of two 18F-labeled tracers containing 3-fluoro-2-hydroxypropyl moiety, [18F]FMISO and [18F]PM-PBB3, via [18F]epifluorohydrin

Fig. 2

Radiosynthesis of [18F]FMISO by 18F-fluorination using [18F]F− and 18F-fluoroalkylation using [18F]epifluorohydrin ([18F]5). In this study, after the [18F]F− solution was dried, a solution of 8 (3.5 mg) in o-dichlorobenzene (0.15 mL) was added to a reaction vial containing dry [18F]F−. The resulting [18F]5 was distilled under an atmosphere of nitrogen, and transferred to another reaction vial containing 6 (2 mg) and 1 mol/L NaOH (18 µL) in anhydrous DMF (0.25 mL) maintained at -15 °C. After 2 min of trapping of [18F]5, the reaction mixture was heated at 150 °C for 20 min to obtain [18F]FMISO

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