Patent ID: 7157460

Claim:
A compound of formula I: wherein R 1 and R 2 are each independently H, or cyclopropyl, wherein the cyclopropyl group may be further substituted with one or more substituents selected from the group consisting of aryl, halogen, —OH, —OR 7 , a heteroalicyclic group, and a trihaloalkyl group; R 3 and R 4 are H; R 5 is phenyl, wherein the phenyl group may be further substituted with one or more substituents selected from the group consisting of alkyl, alkoxy, halogen, —OR 7 , —NR 7 R 8 , —NR 7 C(O)R 8 , aryl, —C(O)OR 7 , cycloalkyl, haloalkyl, haloalkoxy, —C(O)R 7 , —NR 7 C(O)OR 8 , —SO 2 R 7 , —NR 7 C(O)NR 9 R 8 , —C(O)NR 7 R 8 and —SO 2 NR 7 R 8 ; wherein at least one of R 3 , R 4 and R 5 is an aryl; R 6 is H; R 7 , R 8 and R 9 are independently H, alkyl, aralkyl, heterocycloalkyl or aryl, wherein the alkyl and aryl may be further substituted with one or more substituents selected from the group consisting of alkyl, aryl, trifluoroalkyl, —OH, alkoxy, amino, —NO 2 and —CN; alternatively, NR 7 R 8 can form a 5–7 membered heteroalicyclic ring, a 5–6 membered heteroaryl ring, wherein the heteroalicyclic ring may further contain no more than 4 of the heteroatoms (N, O, or S), and the cyclic structure formed about NR 7 R 8 may be substituted with one or more substituents selected from the group consisting of alkyl, haloalkyl, alkoxy, heteroalicylic, aryl, heteroaryl and halo; and wherein one of R 1 or R 2 is cyclopropyl; or a pharmaceutically acceptable salt thereof.