OPTIONALLY PROTECTED IRIDOID-DERIVED COMPOUNDS, COMPOSITION INCLUDING SAME, USE AS A DYE FOR KERATIN FIBRES AND DEVICES

摘要

The present invention relates to compounds of formula (I) and (II) below, in which R1 and R"1 are -CH3; -CH2OZ; -CHO; -COOR10, R10: H, alkyl -CONRn R-12, Ru, R12: H, W, at least one of the radicals being other than H -CH2NR13R14, R13, R14: H, W, at least one of the radicals being other than H -COR15, R15: alkyl, R2 and R"2 are H; -CH3; -CH2OZ; -COR20, R20: alkyl; -COOR21, R21: H, alkyl; -CONR22R23, R, R23: H, W, at least one of the two being other than H; -CH2NR24R25, R24 and R25: H, W, at least one of the two being other than H; - C(OH)R26R27, R26, R27: non-substituted alkyl, phenyl, benzyl; R3 and R"3 are: -OZ; -CH3; -NR31 R32, R31 and R32: H, W, at least one of the two being other than H; alkylthio; R"3 also optionally being H; R4 and R"4 are H; an alkyl; a sugar unit; -COR40, R40: alkyl; -COOR41 R41: alkyl; -CONR42R43, R42, R43: H, W; -Si(R44)3 R44: alkyl; Z is H; alkyl; a sulphonic, alkyl sulphonate, phenyl sulphonate or alkylphenyl sulphonate group; a -CORz group with Rz: alkyl, sugar unit; W is a hydrocarbon radical at CrC40, which is straight, branched and/or cyclic, saturated, unsaturated, aromatic or not, optionally substituted; and/or optionally interrupted by one or more heteroatoms and/or groups including same; n integer varies from 0 to 5. Exclusions from the formula (I): * when R4 is a sugar unit, an alkyl(d-C4)carbonyl, a mono- or di- alkyl(C1-C4)aminocarbonyl, then R2 is not an alkoxy(d-C2)carbonyl, hydroxycarbonyl, -CH2OH, R2 also is not H when R4 is a sugar; ** when R4 is H and R-/ is -CH3, -CH2OH, then R2 is not H, -CH3, -COOH or -COOCH3. The invention also relates to a composition including such compounds as well as to a method for dying keratin fibres implementing same.