| 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.
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