METHOD OF PRODUCING RADIOACTIVE FLUORINE-LABELLED ORGANIC COMPOUND Russian patent published in 2011 - IPC C07C227/18 C07C227/20 C07C229/48 C07B59/00 

Abstract RU 2434846 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing a radioactive fluorine-labelled organic compound of formula (3). The method involves a step for splitting an ester of formula (1), where R1 is a straight or branched C1-C10 alkyl and R2 is a protecting group selected from straight or branched C2-C7 alkyloxycarbonyl groups, passed through and held in a reverse phase column containing filler with a structure in which C2-C18 alkyl groups are attached to a substrate by silicon. In order to split said ester, alkali solution is fed into the column, after which alkaline solution is discharged from the column to obtain a compound of formula (2), where X is sodium or potassium and R2 is a protecting group selected from straight or branched C2-C7 alkyloxycarbonyl groups. At the next step, the protecting group R2 of the compound of formula (2), obtained at the ester splitting step, is removed to obtain a compound of formula (3).

EFFECT: method enables to reduce the amount of nonradioactive impurities and obtain a compound of formula (3) with good output.

2 cl, 3 dwg, 5 tbl, 2 ex

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RU 2 434 846 C2

Authors

Khajasi Akio

Kurosaki Fumie

Tojama Masakhito

Sinmura Tosijuki

Kaneko Ehmi

Dates

2011-11-27Published

2007-05-07Filed