ANTIOXIDANTS Russian patent published in 2012 - IPC C07C43/23 C07C49/255 C07C217/80 C07C219/34 A61P39/06 A61Q19/02 A61Q17/04 A61K8/34 A61K8/35 A61K8/368 A61K8/41 A23L3/3481 A23L3/3526 

FIELD: chemistry.

SUBSTANCE: present invention relates to use of compounds of formula Ia, Ib or Ic or cosmetically acceptable salts thereof as antioxidants, for preparing cosmetic compositions and for controlling pigmentation, particularly for clearing areas on the skin, to certain specific compounds of formula Ia, Ib or Ic or cosmetically acceptable salts thereof, a method of producing compounds of formula Ia, Ib or Ic, a cosmetic composition based on compounds of formula Ia, Ib or Ic and preparation method thereof or . In formulae la, lb or Ic, each of R²-R⁶ and R⁹-R¹³ is independently selected from H, OH, straight or branched C₁-C₂₀-alkoxy groups, straight or branched C₁-C₂₀-alkyl groups.

EFFECT: obtaining compounds used as antioxidants.

14 cl, 9 ex, 3 tbl, 1 dwg