Patent ID: 8143304

Claim:
A compound of Formula I: wherein R 1 , R 2 , R 3 and R 4 are independently hydrogen, C 1-5 -alkyl, C 1-5 -alkoxy, alkenyl, halogen, nitro, cyano, halo-C 1-6 -alkoxy, halo-C 1-6 -alkyl, C 1-6 -alkylsulfonyl, or formyl; R 5 is a hydrogen, alkenyl, C 1-6 -alkyl, cycloalkyl-C 1-4 -alkyl, C 1-3 -alkoxy-C 1-4 -alkyl, aryl-C 1-4 -alkyl, or aryloxy-C 1-4 -alkyl; wherein the aryl is unsubstituted, mono- or di-substituted by C 1-2 -alkylendioxy, C 1-4 -alkoxy, C 1-4 -alkyl, halogen, trifluoromethyl, or trifluoromethoxy; and R 6 is a C 1-9 -alkylaminocarbonyl; C 1-9 -alkylaminothiocarbonyl; C 1-9 -alkylcarbonyl; C 1-9 -alkoxycarbonyl; arylalkenylcarbonyl; arylaminocarbonyl; arylaminothiocarbonyl; aryl-C 1-3 -alkoxy-C 1-3 -alkoxycarbonyl; aryl-C 1-3 -alkoxycarbonyl; aryl-C 1-3 -alkylaminocarbonyl; aryl-C 1-6 -alkylcarbonyl; aryl-C 1-3 -alkoxy-C 1-3 -alkylcarbonyl; arylcarbonyl; arylcarbonyl-C 1-4 -alkylcarbonyl; aryloxy-C 1-3 -alkylcarbonyl; arylsulfonylaminocarbonyl; cycloalkyl-C 1-3 -alkylcarbonyl; diaryl-C 1-3 -alkylcarbonyl; heterocyclylcarbonyl; heteroaryl-C 1-3 -alkylcarbonyl; heteroarylcarbonyl; aryl-C 3-6 -cycloalkylcarbonyl; cycloalkylcarbonyl; or R 7 —C 1-4 -alkylcarbonyl wherein the bridging C 1-4 -alkyl group of the R 7 —C 1-4 -alkylcarbonyl may additionally be mono-substituted with an aryl or disubstituted with a hydroxy, and wherein R 7 is an arylaminocarbonyl, heteroarylaminocarbonyl, C 1-6 -alkylaminocarbonyl, or aryl-C 1-3 -alkylaminocarbonyl; further wherein the aryl is unsubstituted, mono- or di-substituted with a C 1-2 -alkylendioxy; C 1-6 -alkoxy; C 1-6 -alkyl; C 1-6 -alkylsulfonyl; phenyl which is unsubstituted, mono- or di-substituted by a halogen, trifluoromethyl, methoxy or methyl; naphthyl; phenyl-C 1-3 -alkyl, wherein the phenyl group is unsubstituted, mono- or di-substituted independently with a halogen, trifluoromethyl, methoxy or methyl; naphthyl-C 1-3 -alkyl; phenoxy, wherein the phenyl group is unsubstituted, mono- or di-substituted independently with a halogen, trifluoromethyl, methoxy or methyl; naphthyloxy; halogen; hydroxy; halo-C 1-6 -alkyl; halo-C 1-6 -alkoxy; C 1-6 -alkylthio; or C 1-4 -alkoxycarbonylamino; or a salt thereof.