Patent ID: 7872026

Claim:
A compound having the following structural formula: in which: Ar is a radical selected from among the radicals of formulae (a) to (c) below: wherein R 1 is a radical —OR 3 or —NR 4 R 5 and R 3 , R 4 and R 5 are as defined below, wherein R 2 is a hydrogen, fluorine or chlorine atom, a methyl radical or a radical OR 6 and R 6 is as defined below; R 3 is a hydrogen atom, a linear or branched alkyl radical having from 1 to 20 carbon atoms, a mono- or polyhydroxyalkyl radical having from 1 to 20 carbon atoms, a monoaminoalkyl radical having from 1 to 20 carbon atoms, or a sugar residue; R 4 and R 5 , which may be identical or different, are each a hydrogen atom, a hydroxyl radical, a linear or branched alkyl radical having from 1 to 6 carbon atoms, a mono- or polyhydroxyalkyl radical having from 1 to 20 carbon atoms, or R 4 and R 5 together form, with the nitrogen atom from which they depend, an amino acid residue or a peptide residue, or, alternatively, R 4 and R 5 together form with said nitrogen atom a heterocycle; R 6 is a hydrogen atom, a methyl radical or an acetyl radical; R 7 is CF 3 or a methyl radical; r′ and r″, which may be identical or different, are each a hydrogen atom, a linear, branched or cyclic alkyl radical having from 1 to 4 carbon atoms, or a radical (C═O)R 7 , or, alternatively, r′ and r″ with the nitrogen atom from which they depend, together form a pyrrolidine or piperidine; A is an oxygen atom or a sulfur atom; n is an integer ranging from 1 and 4; W is a —CH 2 — radical; Y is an oxygen atom or a sulfur atom; or a salt of the compound of formula (I) when R 1 ═OH, or an optical or geometrical isomer of the compound of formula (I).