Patent ID: 7253186

Claim:
A compound of Formula I or a pharmaceutically acceptable salt thereof, wherein R 1 is an optionally substituted heterocyclyl; R 2 and R 3 are independently selected from the group consisting of hydrogen, C 1-6 -alkyl and halogen or such that R 2 together with R 3 forms a 3-, 4-, 5-, 6-, or 7-membered ring system with the atoms of the piperidine ring; m is 1; n is selected from the group consisting of 1, 2, and 3; Ar 1 is an aryl or heteroaryl optionally substituted with a substituent selected from the group consisting of C 1-6 -alkyl, C 1-6 -alkoxy, carboxyl, amino, hydroxy, thiol, nitro, cyano, guanidino, carbamido and halogen; W is selected from the group consisting of oxygen and sulfur; X is selected from the group consisting of optionally substituted methylene, optionally substituted ethylene, optionally substituted propylene, optionally substituted vinylene, and CH 2 N(R N ), wherein R N is selected from hydrogen and C 1-6 -alkyl; and Ar 2 is an optionally substituted aryl or heteroaryl.