Patent ID: 7897811

Claim:
A process for production of a radioactive fluorine-labeled organic compound, which comprises: a deesterification step of retaining, in a reverse-phase column, a compound represented by the following formula (1): wherein R 1 is a linear or branched C 1 -C 10 -alkyl chain or an aromatic substituent, and R 2 is a protecting group; charging the column with an alkaline solution to deesterify the above compound, and subsequently discharging the alkaline solution from the column to obtain a compound represented by the following formula (2): wherein X is a cation contained in the alkali used in the deesterifiction step; and R 2 is a protecting group; and a deprotection step of deprotecting the amino-protecting group of the compound obtained in the deesterification step to obtain a compound represented by the following formula (3):