Process for treating keratin materials using amide, acid or ester c-glycoside derivatives, and cosmetic composition containing same
The present invention relates to a process for cosmetic treatment of the skin, comprising the application to the skin of a composition comprising a compound (I) with R, R′ and X as defined in the description and S* a monosaccharide or polysaccharide.
1. A cosmetic composition comprising at least one compound of formula (I):
wherein
S* denotes a saccharide sugar radical from a saccharide chosen from glucose, galactose, mannose, xylose, lactose and rhamnose,
said saccharide radical being connected to the rest of the molecule by a bond between the C 1 carbon atom of one of the sugars of said saccharide radical, this bond possibly being α or β anomeric;
X represents an oxygen;
R′ represents i) a hydrogen atom; or ii) a (C 1 -C 6 )alkyl group;
R represents a group chosen from hydroxyl; saturated or unsaturated (C 1 -C 18 )alkoxy, NR 1 R 2 with R 1 and R 2 , which may be identical or different, representing a hydrogen atom or an alkyl group.
2. The cosmetic composition as claimed in claim 1 , wherein the at least one compound is chosen from the following compounds:
and also the solvates thereof, and the organic or mineral base or acid salts thereof, and also the substituted forms thereof in which all the hydroxyl groups of the sugar are substituted with the same group chosen from acetyl, tetrahydropyranyl (THP, trimethylsilyl (TMS, tert-butyldimethylsilyl (TBDMS), tosyl, tert-butyl, methoxymethyl (MOM) and benzoate.
3. The cosmetic composition as claimed in claim 1 , wherein the at least one compound is chosen from:
and also the solvates thereof, and the organic or mineral base or acid salts thereof.
4. The cosmetic composition as claimed in claim 1 , which comprises a physiologically acceptable medium and at least one adjuvant in an amount of 0.1% to 40% by weight relative to the total weight of the composition.
5. The cosmetic composition as claimed in claim 4 , wherein the physiologically acceptable medium and/or at least one adjuvant is selected from the group of water; organic solvents; carbon-based and/or silicone oils, of mineral, animal and/or plant origin; waxes, pigments, fillers, dyes, surfactants, emulsifiers, coemulsifiers; cosmetic or dermatological active agents, UV-screening agents, polymers, hydrophilic or lipophilic gelling agents, thickeners, preservatives, fragrances, bactericides, odour absorbers and antioxidants.
6. The cosmetic composition as claimed in claim 1 , wherein the at least one compound is chosen from the following compounds:
and also the solvates thereof, and the organic or mineral base or acid salts thereof.
7. The cosmetic composition as claimed in claim 2 , wherein all of the hydroxyl groups of the sugar of the at least one compound are substituted with acetyl.