NOVEL POLYUNSATURATED COMPOUNDS, METHOD OF THEIR OBTAINING AND COMPOSITIONS WHICH CONTAIN THEM Russian patent published in 2012 - IPC C07C403/14 C07H15/207 C07D311/72 A61Q19/02 

FIELD: chemistry.

SUBSTANCE: invention relates to novel polyunsaturated compounds of formula , where R₁ is selected from -COOH, -COOR₃, -CHO; R₂ represents: phenyl group, probably substituted with hydroxy or C₁-C₁₆ alkoxygroup, or alpha-D-glucopyranosyl group, where all hydroxyl groups are substituted with acetyl group, or residue of C₄-C₃₀ fatty acid, probably substituted at the chain end with hydroxy or acetoxy, group -OC-(CH₂)_n-CO-tocopheryl (delta), where 2≤n≤10; R₃ represents linear or branched C₁-C₁₆alkyl radical and to methods of their obtaining. Invention also relates to dermatological compositions, possessing inhibiting activity with respect to production of melanin by melanocytes, which contain formula (I) compounds, which can be applied as bleaching or lightening agent.

EFFECT: improvement of compound properties.

5 cl, 23 ex