Automated synthesis and purification of [18F]fluoro-[di-deutero]methyl tosylate

Automated synthetic procedures of [ 18 F]fluoro-[di-deutero]methyl tosylate on a GE TRACERlab FX F-N module and a non-commercial synthesis module have been developed. The syntheses included azeotropic drying of the [ 18 F]fluoride, nucleophilic 18 F-fluorination of bis(tosyloxy)-[di-deutero]methane, HPLC purification and subsequent formulation of the synthesized [ 18 F]fluoro-[di-deutero]methyl tosylate (d2-[ 18 F]FMT) in organic solvents. Automation shortened the total synthesis time to 50min, resulting in an average radiochemical yield of about 50% and high radiochemical purity (>98%). The possible application of this procedure to commercially available synthesis modules might be of signi…