FIELD: chemistry.
SUBSTANCE: novel phenyloxyaniline derivative labelled with radioactive halogen has formula 
(I), where R1 denotes an unsubstituted alkyl group having 1-10 carbon atoms, X4 denotes a hydrogen atom, and X1, X2 and X3 are identical or different and each denotes a hydrogen atom, an alkoxy group, having 1-5 carbon atoms, a halogen atom, or a radioactive halogen atom selected from a group comprising 121I, 123I, 124I, 125I, 131I, provided that X2 or X3 denote a radioactive halogen atom selected from a group comprising 121I, 123I, 124I, 125I, 131I, which is a compound which is suitable during early detection, prevention and treating diseases such as dementia of the Alzheimer's type.
EFFECT: more effective use of the compounds.
3 cl, 6 ex, 2 dwg
