Patent ID: 8202859

Claim:
A compound of the following formula: wherein: R 3 is an aryl or heteroaryl group, which is optionally substituted with a halogen, lower alkoxy, aryl or heteroaryl group; R 4 is halogen; R 5 is hydrogen, halogen, hydroxy, or lower alkyl; R 6 and R 7 are independently selected from hydrogen, halogen, hydroxy, and lower alkyl; R 8 and R 9 are independently selected from hydrogen, alkyl, halogen, hydroxy, alkoxy, alkylenedioxy, carboxy, acyloxy, alkoxycarbonyl, alkoxycarbonylamino, alkylcarbonylamino, aminocarbonyl, aminocarbonylamino, cyano, acyl, oxo, nitro, amino, sulfanyl, sulfinyl, sulfonyl, aminosulfonyl, amidino, phenyl, benzyl, heteroaryl, heterocyclyl, aryloxy, arallkoxy, heteroaryloxy, and heteroaralkoxy, wherein the amino(s) in the aminocarbonyl, amino, or aminosulfonyl is optionally substituted with alkyl; or a pharmaceutically acceptable salt thereof.