The present invention relates to compounds corresponding to formula (I): in which: - A represents a divalent aromatic radical - X represents a -CH- group or a nitrogen atom - R1 represents a (C1-C4)alkyl or a (C1-C4)alkoxy - R2 represents a group Alk - R3 represents a hydroxyl or a group -NR7R8 - R4 represents a hydrogen atom, a halogen atom, a cyano, a phenyl, a group Alk, a group OAlk or a group -NR9R10 - R5 represents a hydrogen atom, a halogen atom or a group Alk - R6 represents a hydrogen atom, a halogen atom, a cyano, a group -COOAlk or a -CONH2 group. Method of preparation and application in therapeutics.