1-substituted 4-methoxy-2,3,6-trimethylbenzene derivatives, and medicinal and cosmetic compositions containing these derivatives

摘要

The invention provides a compound of formula (II): <IMAGE> (II) and the corresponding isomers and salts; in this formula, a equals 0 or 1; R1 and R2 represent, independently, H or a C1-C4 alkyl group; R3 denotes -C 3BOND N; oxazolinyl; -CH2OR4 (R4=H, C1-C4 alkyl, C2-C6 mono- or poly-hydroxyalkyl, cyclopentyl or cyclohexyl, or -OR4=tetrahydropyranyl); -COR5 (R5=H, C1-C4 alkyl, -NR'R'' where R' and R'' have various meanings); -OR6 (R6=H, C1-C18 alkyl, C2-C3 monohydroxyalkyl or C3-C6 polyhydroxyalkyl with 2-5 OH groups), which has useful medicinal and cosmetic applications.