Patent ID: 8907095

Claim:
A compound having the formula: or a pharmaceutically acceptable salt thereof, wherein: W is a bond, —C(O)—O—or —S(O) 2 —; X is —O—or —NH—; Y is —O—, such that the group —Y-A-X—B—can be in an exo- or endo- configuration with respect to the bicyclic ring to which variable Y is attached; Z is a bond, —CH 2 —or —O—; A is wherein Q is H, alkyl, halo or —O-alkyl B is aryl or a -5- or 6-membered heteroaryl group, each of which can be unsubstituted or optionally substituted with up to 3 groups, which can be the same or different, and are selected from: alkyl, heteroaryl, halo, —CN, —S(O) 2 -alkyl and —S(O) 2 -cycloalkyl; R 3 is alkyl, -alkylene-aryl, -cycloalkyl, -alkylene-O-alkyl or haloalkyl, wherein a cycloalkyl group can be unsubstituted or substituted with an alkyl group; p is 0, 1 or 2; q is 0, 1 or 2; r is 0, 1 or 2; s is 0, 1 or 2; and u is 0, 1 or 2.