Last-step F-fluorination of supported 2-(aryl-di--butylsilyl)--methyl-imidazole conjugates for applications in positron emission tomography.

Aiming for potential applications in positron emission tomography, fully automated productions of F-labelled bioconjugates were achieved using heterogenous precursors obtained by anchoring imidazole-di--butyl-arylsilanes to a polystyrene resin. The reactions were performed using either "batch" or "flow" procedures, avoiding both the time-consuming azeotropic drying and HPLC purifications usually required.