Patent ID: 7723377

Claim:
A compound of the formula: or a pharmaceutically acceptable salt thereof, wherein, R 1 , and R 2 are each independently selected from the group consisting of hydrogen, hydroxy, methoxy, halide, haloalkyl, small alkyl, and small alkoxy; R 3 , R 4 and R 5 are each independently selected from the group consisting of hydrogen, small alkyl, cycloalkyl, heterocyclyl, heterocyclylalkyl, aryl, arylalkyl, heteroaryl, and heteroarylalkyl; R 6 and R 7 are each independently selected from the group consisting of hydrogen, small alkyl, hydroxyalkyl, cycloalkyl, heterocyclyl, heterocyclylalkyl, aryl, arylalkyl, heteroaryl, and heteroarylalkyl; or R 6 and R 7 along with the nitrogen to which they are attached form a five or six membered heterocyclic ling, comprising one or two heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen, wherein the five or six membered heterocyclic ring is unsubstituted, or substituted with a substituent selected from the group consisting of hydroxy, hydroxyalkyl, halide, haloalkyl, small alkyl, small alkoxy, and —CH 2 OR 9 ; R 8 is selected from the group consisting of hydroxy, small alkoxy, and —NR 10 R 11 ; R 9 is selected from the group consisting of hydrogen, small alkyl, cycloalkyl, heterocyclyl, heterocyclylalkyl, aryl, arylalkyl, heteroaryl, and heteroarylalkyl; and R 10 and R 11 are each independently selected from the group consisting of hydrogen, small alkyl, hydroxyalkyl, cycloalkyl, heterocyclyl, heterocyclylalkyl, aryl, arylalkyl, heteroaryl, and heteroarylalkyl; or R 10 and R 11 along with the nitrogen to which they are attached form a five or six membered heterocyclic ring, comprising one or two heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen, wherein the five or six membered heterocyclic ring is unsubstituted, or substituted with a substituent selected from the group consisting of hydroxy, hydroxyalkyl, halide, haloalkyl, small alkyl, small alkoxy, and —CH 2 OR 9 .