Compounds benzopyran and benzoic, their process of preparation and their use in, and in human and veterinary medicine

摘要

An aromatic benzopyranyl or benzothiopyranyl compound of the formula IMAGE (I) wherein n is 0 or 1, X represents IMAGE R' represents H, OH, acyloxy or NH2, R'' represents H or alkoxy or R' and R'' taken together form an oxo, methano or hydroxyimino radical, R8 represents H, IMAGE R9 represents H, alkyl, mono or polyhydroxyalkyl, aryl, aralkyl, a residue of a sugar or IMAGE p equals 1, 2 or 3, r' and r'' represent H, alkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl, benzyl, the residue of an amino acid or an aminated sugar, or together form a heterocycle, R1, R2, R3 and R4 represents H or lower alkyl, R5, R6 and R7 represent H or methyl or when n=1, R5 and R7 taken together form with the benzene ring a naphthalene ring (R5-R7=-CH=CH-), and the salts of said compounds as well as their geometric and optical isomers. These compounds are useful in pharmaceutical and cosmetic compositions.