Patent ID: 7595315

Claim:
A compound of formula (V) wherein, R1 is (CH 2 ) n Ar2 wherein n is 0 and Ar2 is a phenyl ring optionally substituted with 1 or 2 substituents each independently selected from C1-C4 alkyl optionally substituted with 1, 2 or 3 halogen atoms, C1-C4 alkoxy optionally substituted with 1, 2 or 3 halogen atoms, halo and hydroxy; R2 is C1-C4 alkyl optionally substituted with 1, 2 or 3 fluorine atoms, C1-C4 alkoxy optionally substituted with 1, 2 or 3 fluorine atoms, phenyl optionally substituted with 1, 2 or 3 substituents each independently selected from fluorine and trifluoromethoxy, pyridyl or phenoxy; and R5 is H or F; or a pharmaceutically acceptable salt thereof.