Patent ID: 8343977

Claim:
A compound having formula I: or a pharmaceutically acceptable salt thereof, wherein: R 1 is selected from unsubstituted or substituted C 1 -C 6 alkyl, halogen, unsubstituted or substituted C 6 -C 10 aryl, and unsubstituted or substituted heteroaryl comprising one or two 5- or 6-member ring and 1-4 heteroatoms selected from N, O and S; R 2 is selected from unsubstituted or substituted C 6 -C 10 aryl, unsubstituted or substituted heterocycle comprising one or two 5- or 6-member ring and 1-4 heteroatoms selected from N, O and S, and monocyclic heteroaryl comprising a 5- or 6-member ring and at least one ring nitrogen atom, wherein said monocyclic heteroaryl is optionally substituted with: halogen, unsubstituted or substituted C 1 -C 6 alkyl, CF 3 , CN, S(O) p R 3 , C(O)OR 4 , OR 5 , C(O)R 9 , or unsubstituted or substituted heteroaryl comprising one or two 5- or 6-member ring and 1-4 heteroatoms selected from N, O and S, provided that said monocyclic heteroaryl is not pyridinone; R 3 is selected from unsubstituted or substituted C 1 -C 6 alkyl and unsubstituted or substituted C 6 -C 10 aryl; R 4 is selected from unsubstituted or substituted C 1 -C 6 alkyl; R 5 is selected from unsubstituted or substituted C 1 -C 6 alkyl and unsubstituted or substituted C 6 -C 10 aryl; R 9 is selected from unsubstituted or substituted C 1 -C 6 alkyl and unsubstituted or substituted C 6 -C 10 aryl; and p is 0, 1, or 2.