Patent ID: 7524969

Claim:
A compound of the formula: R 3 is hydrogen; C 1 -C 8 alkyl unsubstituted or substituted with C 1 -C 6 alkoxy, pyridyl, furanyl, methylimidazolyl, thiazolyl, phenyl or substituted phenyl, wherein the substituent is cyano, C 1 -C 6 alkyl, halo, dihalo, methylsulfonyl, carboxy, C 1 -C 6 alkoxy, C 1 -C 6 alkoxycarbonyl, teterazolyl or carboxyvinyl; R 4 is hydrogen; C 1 -C 8 alkyl unsubstituted or substituted with one or two C 1 -C 6 alkoxy, carboxy, C 1 -C 6 alkoxycarbonyl or phenyl; cyclohexyl; phenyl unsubstituted or substituted with one or two halo; or pyridyl; R 5 is hydrogen; R 7 is halophenyl; or a pharmaceutically acceptable salt thereof.