Patent ID: 8022250

Claim:
A compound of formula (I): wherein: R and R 1 are the same and are a linear or a branched C 1 -C 4 alkyl; G is a —CONH 2 or a —CONHSO 2 R′″ group wherein R′″ is a linear or a branched C 1 -C 4 alkyl or a C 3 -C 6 cycloalkyl; R 2 is F; Ar is a group of formula wherein R 3 represents one or more groups independently selected from: a halogen selected from the group consisting of F, Cl, Br, and I; —CF 3 ; —C 3 -C 8 cycloalkyl optionally substituted with one or more C 1 -C 4 alkyl groups, oxo groups, or a combination thereof; CH═CH 2 ; —CN; —CH 2 OH; methylendioxy or ethylendioxy; NO 2 phenyl optionally substituted with one or more of the following groups: halogen; —CF 3 ; OCF 3 ; —OH; a linear or a branched C 1 -C 4 alkyl; a saturated heterocycle with at least 4 carbon atoms and at least 1 heteroatom; a C 3 -C 8 cycloalkyl in turn optionally substituted with one or more of the following groups: a linear or a branched C 1 -C 4 alkyl, —CF 3 or —OH; —OR 4 or —NHCOR 4 wherein R 4 is —CF 3 , a linear or a branched C 2 -C 6 alkenyl or alkynyl; a benzyl; a phenyl optionally substituted with one or more of the following groups: halogen, —CF 3 , —OCF 3 , —OH, a linear or a branched C 1 -C 4 alkyl; a saturated heterocycle with at least 4 carbon atoms and at least 1 heteroatom; a C 3 -C 8 cycloalkyl in turn optionally substituted with one or more of the following groups: a linear or a branched C 1 -C 4 alkyl, —CF 3 or —OH; —SR 5 , —SO 2 R 5 or —COR 5 wherein R 5 is a linear or a branched C 1 -C 6 alkyl; or Ar is a substituted or unsubstituted heterocyclic ring selected from the group consisting of thiophene, benzothiophene, dibenzothiophene, thianthrene, pyrrole, pyrazole, furan, benzofuran, dibenzofuran, indole, isoindole, benzofurane, imidazole, benzoimidazole, oxazole, isoxazole, benzoxazole, thiazole, pyridine, pyrimidine, pyrazine, pyridazine, quinoline, isoquinoline, quinazoline, quinoxaline, cinnoline, pyrazole, pyran, benzopyran, pyrrolizine, phtalazine, 1,5-naphtiridine, 1,3-dioxole, and 1,3-benzodioxole, each of which may be substituted with one or more R 3 groups; or a pharmaceutically acceptable salt or ester thereof.