Patent ID: 8034939

Claim:
A compound of formula (I) wherein: A1, A2, and A4, which may be identical or different, are CRa and R3 is Cra or N; n is the integer 2; R1 is an oxygen or sulphur atom or a radical NH; R2 is independently selected from the group consisting of H, halogen, CF3, nitro, cyano, methyl, ethyl, hydroxyl, mercapto, amino, methylamino and dimethylamino, Ra is selected from the group consisting of H, halogen, CF3, hydroxyl, mercapto, nitro, amino, OR3, SR3or NR3R; R3 and R4 are independently chosen from the group consisting of a hydrogen atom, alkyl, a racemate, enantiomer, or diastereomer of said compound or an inorganic or organic acid addition salt, or an inorganic or organic base addition salt of said compound, racemate, enantiomer, or diastereomer.