Patent ID: 8759355

Claim:
A compound of formula (I): or a pharmaceutically acceptable salt or solvate thereof, wherein: R 1 each independently represents —CF 3 or halogen; R 2 independently represents H, —CH 3 , —OCH 3 or halogen; R 3 , R 4 independently represent H or —CH 3 ; R 5 is selected from H, C 1 -C 6 linear or branched alkyl or benzyl, the phenyl ring of the benzyl being optionally substituted by 1-5 substituents selected from the group consisting of halogen, nitro, hydroxyl, hydroxymethyl, trifluoromethyl, trifluoromethoxy, C 1 -C 6 linear or branched alkyl, C 2 -C 6 linear or branched alkenyl, C 1 -C 4 alkoxy, C 2 -C 4 alkenoxy, phenoxy, benzyloxy, nitrile group, carboxyl or amino; y represents 0, 1, 2, 3, 4 or 5; X represents O or S; and Y represents O.