Patent ID: 7223891

Claim:
A process for the production of an [ 18 F]fluorohaloalkane which comprises treatment of a solid support-bound precursor of formula (I): SOLID SUPPORT-LINKER-SO 2 —O—(CH 2 ) n X (I) wherein n is an integer of from 1 to 7 and X is chloro, bromo or iodo; with a source of 18 F − in an organic solvent and optionally in the presence of a phase transfer catalyst to produce the [ 18 F]fluorohaloalkane of formula (II) 18 F—(CH 2 ) n —X (II) wherein n and X are as defined for the compound of formula (I), optionally followed by (i) removal of excess 18 F − ; and/or (ii) removal of organic solvent.