BIAROMATIC COMPOUNDS AND PHARMACEUTICAL AND COSMETIC COMPOSITIONS BASED ON THEREOF Russian patent published in 2002 - IPC

FIELD: organic chemistry, medicine, pharmacy, cosmetics. SUBSTANCE: invention relates to novel compounds of the formula (I): where Ar means radical taken among formula (a) and (b) where R₁ means halogen atom, -CH₃, CH₂OR₇, -OR₇, COR₈,; R₂ and R₃, taken in common form 5- or 6-membered ring; R₄ and R₅ mean H, halogen atom, C₁-C₁₀--alkyl; R₇ means H; R₈ means H or ; X means radical +Y-C? C-; r' and r'' mean H, -alkyl, phenyl; Y means C₁-C₁₀ or SE where n = 0, 1 or 2, and salts of compounds of the formula (I). Indicated compounds can be used, in part, for treatment of dermatological damages associated with keratinization impairments and for control of skin aging. EFFECT: valuable medicinal properties. 11 cl, 3 tbl