FIELD: organic chemistry.
SUBSTANCE: group of inventions relates to the field of organic chemistry and the chemistry of dyes, namely to new polycyclic heterocyclic compounds - derivatives of 2-(chromeno[4,3-b]pyridin-5-yl)acetic acid Ia-f
Where: 
The invention also relates to a method for obtaining derivatives of 2-(chromeno[4,3-b]pyridin-5-yl)acetic acid from electron-deficient 3-vinylchromones and 1,3-N,N-binucleophilic reagent - cyanoacetamide.
EFFECT: new compounds have been obtained that can be used in organic synthesis and in biochemical studies as fluorescent dyes and probes.
2 cl, 1 tbl, 21 ex
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