| abstract |
PRECISION OF DISCLOSURE The invention relates to novel compounds. aromatic benzopyrannyl and benzothiopyrannyl, of formula: (I) where n is 0 or 1, Z represents -O-, -S-, or , R 'represents H, OH, alkoxy, acyloxy or a radical NH2, R "represents H or alkoxy, or R 'and R" taken together form an oxo, methano, or hydroxyimino radical, R represents -CH2OH or -COR8; R8 representing H, -OR9 or R9 represents H, alkyl, mono or polyhydroxyal-kyle, aryl taken from the group consisting of the radical phenyl or phenyl substituted by a halogen atom, a hydroxyl function, nitro function, alkyl radical lower, -CF3 or -COOH or aralkyl in which the nucleus aryle is taken from the same group as before, or a rest of a sugar or the radical: p being 1, 2 or 3 r 'and r "representing H, alkyl, monohydroxyal-kyle, polyhydroxyalkyle, aryl taken from the group consisting by the phenyl radical or phenyl substituted by an atom halogen, a hydroxyl function, a nitro function, a lower alkyl radical, -CF3 or -COOH, benzyl, a residue amino acid or amino sugar or taken together form a heterocycle taken from the group consisting of radicals piperidino, pipérazino, morpholino, pyrrolidino and (hydroxy-2 ethyl) -4 piperazino, R1, R2, R3 and R4 represent H or alkyl inferior, R5, R6 and R7 represent H or methyl or when n = 1, R5 and R7 taken together can form with the benzene nucleus a naphthalene cycle (R5-R7 = -CH = CH-), their salts as well as their geometric isomers and optical. The invention also relates to a method of preparation of these compounds and their use in the cosmetic field in particular in personal hygiene and capillary. |