Patent ID: 7687620

Claim:
A compound of Formula I or a pharmaceutically acceptable salt thereof: wherein R 1 is hydrogen, alkyl of 1 to 6 carbon atoms, alkanoyl of 2 to 6 carbon atoms, or carboarylalkoxy of 7 to 11 carbon atoms; R 2 and R 3 are each, independently, hydrogen, hydroxy, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, halogen, carboxamido, carboalkoxy of two to six carbon atoms, perfluoroalkyl of 1-6 carbon atoms, cyano, alkanesulfonamido of 1-6 carbon atoms, alkanesulfonyl of 1-6 carbon atoms, alkanamido of 1-6 carbon atoms, amino, alkylamino of 1-6 carbon atoms, dialkylamino of 1-6 carbon atoms per alkyl moiety, perfluoroalkoxy of 1-6 carbon atoms, alkanoyloxy of 2 to 6 carbon atoms, alkanoyl of 2 to 6 carbon atoms, aroyl of 6 to 8 carbon atoms, aryl of 5 to 7 carbon atoms, a C 6 to C 13 alkylaryl group having 5 to 7 carbon atoms in the aryl moiety, a 5 to 7 membered heteroaryl group, or a 6 to 13 membered alkylheteroaryl group having 5 to 7 members in the heteroaryl moiety, wherein any R 2 or R 3 substituent having an aryl or heteroaryl moiety may optionally be substituted on the aryl or heteroaryl moiety with 1 to 3 substituents independently selected from a halogen atom, a C 1 -C 6 alkyl group, or a C 1 -C 6 alkoxy group; R 4 and R 5 , taken together with the carbons to which they are attached, form a cyclic moiety selected from a cycloalkane of 4 to 8 carbon atoms, cycloalkene of 4 to 8 carbon atoms, bridged bicyclic alkane of 5 to 10 carbon atoms, bridged bicyclic alkene of 5 to 10 carbon atoms, pyran or thiopyran in which the sulfur atom is optionally oxidized to the sulfoxide or sulfone, wherein the cyclic moiety formed by R 4 and R 5 may optionally be substituted with 1 to 3 substituents independently selected from a halogen atom, a C 1 -C 6 alkyl group, or a C 1 -C 6 alkoxy group; R 6 and R 7 are each, independently, hydrogen or alkyl of 1 to 6 carbon atoms; n is 2; and a dotted line represents an optional double bond.