Compositions comprising 4- (heterocycloalkyl) benzene-1,3-diol derivatives with tyrosinase enzyme inhibitory activity

摘要

Cosmetic composition comprising, in a cosmetically acceptable vehicle, at least one compound of general formula (I) below: in which: R1, R2, R3 and R4, which may be identical or different, represent: - a hydrogen, - a C1-C4 alkyl radical, - a hydroxymethyl, a hydroxyethyl, - a (C1-C4 alkoxy) carbonyl, - a C1-C4 alkoxy, - a hydroxyl, or R1 and R2 are linked together and form a ring of carbons containing 5 or 6 carbon atoms, with the carbon atom to which they are attached, and R3 and R4, which may be identical or different, represent: - a hydrogen, - a C1-C4 alkyl radical, or R1 and R4 are linked together and form a chain - (CH2) 2- or - (CH2) 3-, and R2 and R3, which may be identical or different, represent: - a hydrogen, - a C1-C4 alkyl radical, X represents an oxygen atom or a sulfur atom, Y represents a hydrogen, a chlorine atom or a fluorine atom, m can have the value 1 or 2, and np it can have the value 0 or 1, and when n = 0, then m = 1 or 2, and when n = 1, then m = 1, and also the salts of the compounds of general formula (I), and the enantiomeric forms thereof.