An on-column process by which various radioactive-fluorine-labeled compounds can be obtained in a high yield. The process comprises a step in which [18O] water containing [18F] fluoride ions is introduced into a column packed with an anion-exchange resin for labeled-compound synthesis to collect the [18F] fluoride ions, a step in which the column is dehydrated, and a step in which a substrate is introduced into the column to cause a displacement reaction between the [18F] fluoride ions collected in the column and a leaving group of the substrate to thereby obtain a radioactive-fluorine-labeled compound, wherein the step of passing carbon dioxide through the column is conducted between the resin column dehydration step and the substrate introduction step.
一种可以高产率获得各种放射性
氟标记化合物的柱上工艺。该工艺包括以下步骤:将含有[18F]
氟离子的[18O]
水引入装有阴离子交换
树脂的柱中,用于标记化合物的合成,以收集[18F]
氟离子;柱脱
水;以及将底物引入柱中,使[18F]
氟离子与[18O]
水发生置换反应、将底物引入柱中,使柱中收集的[18F]
氟离子与底物的离去基团发生置换反应,从而获得放射性
氟标记化合物,其中,使
二氧化碳通过柱的步骤是在
树脂柱脱
水步骤和底物引入步骤之间进行的。