Patent ID: 8546581

Claim:
A compound of formula I: wherein: R 1 and R 2 are each independently H, OH, cyano, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, CF 3 , halo or NR 4 R 4 ; R 3 is H or C 1 -C 6 alkyl; X is wherein the Y containing cyclic group is attached at position number 3 of the oxadiazole ring X, and the (CH 2 ) n —CO 2 R 3 moiety is attached at position number 5 of the oxadiazole ring X; Y is S, CR 5 ═N or N═CR 5 ; n is 5, 6 or 7; R 4 is H, COR 6 , SO 2 R 7 , or C 1 -C 6 alkyl; R 4′ is H or C 1 -C 6 alkyl; R 5 is H or forms a bond with X; R 6 is H or C 1 -C 6 alkyl; and R 7 is H or C 1 -C 6 alkyl; or a pharmaceutically acceptable salt thereof wherein said compound of formula I is not: