FIELD: chemistry.
SUBSTANCE: present invention relates to a compound of formula I. Formula I 
, in which R1 is a triphenylmethyl (trityl), A is selected from: a) a monocyclic C6-10-aryl, b) a bicyclic C6-10-aryl, c) C12-20-biaryl, d) monocyclic heteroaryl and e) a bicyclic heteroaryl, where heteroaryl is an aromatic, mono- or bicyclic divalent radical, having 5 to 10 ring atoms and an N heteroatom, optionally, A has one or more substitutes selected from a group comprising: a) halogen, b) nitro, c) alkyl, d) trifluoromethyl and e) Z, where Z is 
, R1 is a triphenylmethyl radical (trityl), # indicates position of bond with A, and separate isomers, tautomers, diastereomers, enantiomers, stereoisomers, mixtures thereof and salts thereof. Invention also discloses a method of producing compounds of formula I, fluorine-labelled glutamate derivatives, compositions.
EFFECT: invention enables to provide stable, optically pure, solid and sufficiently reactive precursors for producing fluorine-labelled glutamate derivatives.
17 cl, 3 tbl, 14 ex
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