Patent ID: 7253296

Claim:
A compound represented by general formula (I): in which: G2 and G3 independently represent an oxygen atom, a sulfur atom or a N—R4 group, wherein G2 and G3 do not simultaneously represent a N—R4 group, R and R4 independently represent a hydrogen atom or a linear or branched alkyl group, saturated or not, optionally substituted, containing from 1 to 5 carbon atoms, R1, R2 and R3, which are the same or different, represent a hydrogen atom, a CO—R5 group or a group corresponding to the formula CO—(CH 2 ) 2n+1 —X—R6, wherein at least one of the groups R1, R2 or R3 is a group corresponding to the formula CO—(CH 2 ) 2n+1 —X—R6, R5 is a linear or branched alkyl group, saturated or not, optionally substituted, optionally substituted by a cyclic group, the main chain of which contains from 1 to 25 carbon atoms, X is a sulfur atom, a selenium atom, a SO group or a SO 2 group n is a whole number comprised between 0 and 11, R6 is a linear or branched alkyl group, saturated or not, substituted or not, comprising or not a cyclic group, the main chain of which contains from 3 to 23 carbon atoms and comprising or not one or more heterogroups selected from the group consisting of an oxygen atom, a sulfur atom, a selenium atom, a SO group and a SO 2 group, with the exception of a compound represented by formula (I) in which G2R2 and G3R3 simultaneously represent hydroxyl groups, the optical and geometrical isomer, racemate, salt, hydrate thereof and mixtures thereof.