Synthesis of the Main Metabolite in Human Blood of the A1 Adenosine Receptor Ligand [18F]CPFPX
摘要:
In human blood, the PET radiotracer [F-18]CPFPX (1) is metabolized to numerous metabolites, one (M1) being the most prominent in plasma 30 min p.i. Because the mass of injected tracer is <= 5 nmol, concentrations in plasma are too low to analyze. Human liver microsomes generate main metabolites having HPLC retention times identical to those in plasma. HPLC-MS tentatively identified M1 as 2. Synthesis of 2 and identical HPLC-MS spectra of 2 and M1 confirmed that assignment.
Synthesis of the Main Metabolite in Human Blood of the A1 Adenosine Receptor Ligand [18F]CPFPX
摘要:
In human blood, the PET radiotracer [F-18]CPFPX (1) is metabolized to numerous metabolites, one (M1) being the most prominent in plasma 30 min p.i. Because the mass of injected tracer is <= 5 nmol, concentrations in plasma are too low to analyze. Human liver microsomes generate main metabolites having HPLC retention times identical to those in plasma. HPLC-MS tentatively identified M1 as 2. Synthesis of 2 and identical HPLC-MS spectra of 2 and M1 confirmed that assignment.