Patent ID: 7384958

Claim:
A compound of the formula: or a pharmaceutically-acceptable salt thereof, wherein: R 2 , R 6 , R 7 and R 8 are independently selected from hydrogen, halogen, alkyl, substituted alkyl, alkoxy, nitro, cyano, aryl, heteroaryl and heterocyclo; R 5 is alkyl substituted with optionally substituted cycloalkyl, aryl or heteroaryl; Y is selected from —OR 9 , —CO 2 R 9 and —CH(CO 2 R 9 ) 2 ; R 9 is hydrogen, alkyl, substituted alkyl, hydroxy, alkoxy, cycloalkyl, substituted cycloalkyl, heterocyclo, aryl, heteroaryl or pentafluorophenyl; and z is 0, 1, 2 or 3, with the proviso: (i) when R 5 is alkyl substituted with optionally substituted aryl, said aryl is substituted with cycloalkyl, heterocyclo or heteroaryl; and (ii) when R 5 is furfuryl, then R 6 is cyano.