Patent ID: 6930109

Claim:
A compound of formula I wherein R 1 , R 2 , R 3 , R 4 , R 5 , and R 8 are, independently, hydrogen, hydroxy, halo, cyano, carboxamido, carboalkoxy of two to six carbon atoms, trifluoromethyl, alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, alkanoyloxy of 2 to 6 carbon atoms, amino, mono- or di-alkylamino in which each alkyl group has 1 to 6 carbon atoms, alkanamido of 2 to 6 carbon atoms, or alkanesulfonamido of 1 to 6 carbon atoms; R 6 and R 7 are independently, hydrogen or alkyl of 1 to 6 carbon atoms; A dotted line represents an optional double bond; A and D, taken together are —N═CH—, or —CR 7 ═N—; Z is CR 8 or N and n is an integer 0, 1 or 2; or a pharmaceutically acceptable salt thereof.