4-(azacycloalkyl)benzene-1,3-diol compounds as tyrosinase inhibitors, process for the preparation thereof and use thereof in human medicine and in cosmetics

A compound of general formula (I) below:

• in which:
• R1 represents:
• a C1-C5 alkyl radical,
• a C3-C6 cycloalkyl radical,
• an aryl radical,
• a substituted aryl radical,
• an aralkyl radical,
• a C1-C5 alkoxy radical,
• an amino radical corresponding to structure (a):
• in which R2 represents:
• a hydrogen,
• a C1-C5 alkyl radical,
• a C3-C6 cycloalkyl radical,
• an aryl radical,
• a substituted aryl radical,
• a pyridyl radical,
• an aralkyl radical,
• a radical corresponding to structure (b):
• in which p can have the value 1 or 2,
• a radical corresponding to structure (c):
• in which R4 represents:
• a carboxymethyl —COOCH3 or carboxyethyl —COOEt radical,
• a C1-C3 alkyl radical,
• a hydrogen,
• and R5 represents:
• a substituted or unsubstituted aryl radical,
• a C3-C6 cycloalkyl radical,
• a pyridyl,
• and R3 represents:
• a hydrogen,
• a C1-C5 alkyl radical;
• or R1 may also represent a radical corresponding to formula (d):
• in which R6 represents:
• a hydrogen,
• a C1-C5 alkyl radical,
• a C3-C6 cycloalkyl radical,
• an aryl radical,
• a substituted aryl radical,
• a pyridyl radical,
• an aralkyl radical,
• R7 represents:
• a hydrogen,
• a C1-C5 alkyl radical,
• and R8 represents:
• a hydrogen,
• a hydroxyl,
• an amino radical,
• a C1-C3 alkoxy radical;
• Y represents a hydrogen or a fluorine, and
• m and n can have the value 0, 1 or 2,
• and also salts of the compounds of formula (I), and enantiomer forms thereof.