PREPARATION METHOD OF FLUMAZENIL LABELED WITH FLUORINE-18 USING DIARYL IODONIUM SALT PRECURSOR

摘要

Disclosed is the synthesis of [ 18 F]flumazenil that is useful in imaging epileptic lesions by PET (positron emission tomography). A method for preparing [ 18 F]flumazenil by reacting a diaryliodonium salt precursor with the positron-emitting radionuclide fluorine-18. [ 18 F]flumazenil can be prepared from the diaryliodonium salt precursor in the presence of kryptofix 2.2.2. /potassium carbonate(K 2.2.2. /K 2 CO 3 ) and TEMPO in dimethylformamide (DMF) at a high yield.