NOVEL POLYUNSATURATED COMPOUNDS, METHOD FOR PREPARING SAME AND COMPOSITIONS CONTAINING SAME.

摘要

The invention concerns novel polyunsaturated compounds of formula (I) wherein: R1 represents a R'1, -A-R'1 group, R'1 being selected among - COOH, -COOR3, -CONH2, -CONHR3, -CONR3 R4, -CHO, -CH2OH, -CH2OR5, and A represents a C2-C16 alkylene, alkenylene or alkylnylene; R2 represents: an optionally substituted aryl group or an optionally substituted heteroaryl group; an osidic residue or, a fatty acid residue optionally branched and/or substituted preferably terminally and particularly by hydroxy, acetoxy radical or by an amino radical protected or not; a -OC -(CH2)n CO-tocopheryl (alpha, beta or gamma or delta) group, with 2 ⿤ n ⿤ 10; a -R'2-O-R6 group, wherein R'2 is an optionally substituted arylene group or an optionally substituted heteroarylene group, and R6 represents a hydrogen atom, a linear or branched optionally substituted C1-C16 alkyl, linear or branched optionally substituted C2-C16 alkenyl, or linear or branched C2-C16 alkynyl group, an optionally substituted tocopheryl radical or the like, an amino acid residue, or an osidic residue. The invention also concerns the compositions, in particular cosmetic and/or dermatological containing at least one compound of formula (I) as well as their use as whitening and/or depigmenting agent, and the cosmetic method using said compositions.