Patent ID: 7060715

Claim:
A pharmaceutically acceptable salt of a compound of formula I wherein: R 1 is selected from the group consisting of: (a) CH 3 , (b) NH 2 , (c) NHC(O)CF 3 and (d) NHCH 3 ; Ar is a mono-, di-, or trisubstituted pyridinyl or pyridinyl N-oxide, wherein the substituents are selected from the group consisting of: (a) hydrogen, (b) halo, (c) C 1-6 alkoxy, (d) C 1-6 alkylthio, (e) CN, (f) C 1-6 alkyl, (g) C 1-6 fluoroalkyl, (h) N 3 , (i) —CO 2 R 3 , (j) hydroxy, (k) —C(R 4 )(R 5 )—OH, (l) —C 1-6 alkyl-CO 2 —R 6 and (m) C 1-6 fluoroalkoxy; R 2 is selected from the group consisting of: (a) halo, (b) C 1-6 alkoxy, (c) C 1-6 alkylthio, (d) C 1-6 alkyl, (e) N 3 , (f) —CO 2 H, (g) hydroxy, (h) C 1-6 fluoroalkoxy, (i) NO 2 , (j) NR 11 R 12 and (k) NHCOR 13 ; R 3 , R 4 , R 5 , R 6 , R 11 , R 12 , R 13 , are each independently selected from the group consisting of: (a) hydrogen and (b) C 1-6 alkyl, or R 4 and R 5 or R 11 and R 12 together with the atom to which they are attached form a saturated monocyclic ring of 3, 4, 5, 6 or 7 atoms.