METHOD FOR FULLY AUTOMATED SYNTHESIS OF 16β-18F-FLUORO-5α-DIHYDROTESTOSTERONE (18F-FDHT)

摘要

The automated synthesis of clinically relevant amounts of 16β-18F-fluoro-5α-dihydrotestosterone (18F-FDHT) using a commercially available radiosynthesizer. Synthesis was performed in 90 minutes with a decay-corrected radiochemical yield of 29±5%. The specific activity was 4.6 Ci/µmol (170 GBq/µmol) at end of formulation with a starting activity of 1.0 Ci (37 GBq). The formulated 18F-FDHT yielded sufficient activity for multiple patient doses and passed all quality control tests required for routine clinical use.