Bicyclic aromatic derivatives, their process of preparation and suutilizacion in human and veterinary medicine and in cosmetics.

摘要

COMPOUNDS bicyclic aromatic, of formula (I) wherein n is 0 or 1; R 'represents H, OH, C1-C4alkoxy or acyloxy C1-C4 alkyl; R "represents C1-C4 alkoxy HO O R '' YR" OXO A taken together form (= O), methane (= CH2) O HIDRIXIIMINO (= N-OH) radical; R represents -CH2OH or -COR7; H REPRESENTING R7, -OR8 or (II); R8 REPRESENTING H, C1-C20 alkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl or aralkyl group optionally substituted or a radical E sugar or TODAINA RADICAL - (CH2) PN (III), p being 1, 2 or 3 and R '' YR "REPRESENTING H, lower alkyl, monohydroxyalkyl optionally interrupted by a heteroatom polyhydroxyalkyl, aryl or benzyl, optionally substituted (S), A amino acid residue or SUGAR aminated or taken together form with the nitrogen atom to which they are related, it a heterocycle, A methylene or dimethylene, substituted or represents lower alkyl, R1, R2, R3 and R4 represent H, lower alkyl; R1 and R3 taken together may form a methylene radical or dimethylene, when A represents a dimethylene radical, R5 and R6 represent HO methyl, and salts of these compounds, their isomers optical and geometric. USE AS ACTIVE cOMPOUND IN THE FIELD pharmaceutical or cosmetic.