Patent ID: 8552022

Claim:
A compound represented by the formula: or a pharmaceutically acceptable salt thereof, wherein: ring A represents an aryl or heteroaryl group containing 1 nitrogen atom, and optionally 1-3 additional nitrogen atoms and optionally 0-1 oxygen or sulfur atoms; ring B represents a heteroaryl ring containing 1-2 nitrogen atoms; i and j independently represent integers selected from 0, 1 and 2, such that i plus j is 1 or 2; R 1 represents a member selected from the group consisting of H, oxo, halo, C 1-6 alkyl, C 1-6 alkylhalo, C 1-6 alkoxy, C 1-6 alkoxyhalo, C(O)C 1-6 alkyl, C(O)—C 1-6 alkylhalo, C(O)—NH—C 1-6 alkyl, NH—C(O)—C 1-6 alkyl optionally substituted with C 1-6 alkyl, C 1-6 alkyl-C(O)—NH—C 1-6 alkyl optionally substituted with C 1-6 alkyl, S(O)—C 1-6 alkyl, SC 1-6 alkyl, SO 2- C 1-6 alkyl, SO 2- NH 2 , SO 2- NH—C 1-6 alkyl, SO 2 N—(C 1-6 alkyl) 2 , CN, and heteroaryl ring or heteroalkyl ring optionally substituted with 1-3C 1-6 alkyl, oxo, halo or C 1-6 alkylhalo groups; each R 2 , R 3 and R 4 is independently selected from H, oxo, halo, C 1-6 alkyl and C 1-6 alkylhalo, wherein the total number of oxo groups does not exceed two; and R 5 is selected from H, C 1-6 alkylhalo and C 1-6 alkyl.