Patent ID: 8614326

Claim:
A compound of the formula: or a pharmaceutically acceptable salt thereof, wherein; n is 0, 1, or 2; m is 1 or 2; o is from 0 to 5; R 1 is selected from the group consisting of: —S-Cy, —NH-Cy, and —O-Cy, wherein Cy is selected from the group consisting of R 2 is hydrogen or a substituent of the formula C 0-12 H 0-26 N 0-2 O 0-4 S 0-1 P 0-1 F 0-6 Cl 0-1 Br 0-1 I 0-1 ; each R 3 , R 4 , and R 5 are independently a substituent of the formula C 0-12 H 0-26 N 0-2 O 0-4 S 0-1 P 0-1 F 0-6 Cl 0-1 Br 0-1 I 0-1 , Y is N or C—H or C—R 4 ; X is O, S, NH, N-alkyl having from 1 to 4 carbon atoms, or a bond; and Z is hydrocarbyl of the formula C 1-8 H 4-17 .