Patent ID: 6927224

Claim:
A compound of Formula (I): or pharmaceutically acceptable salt form thereof, wherein R 1 is R 2 is selected from the group consisting of H, C 1-8 alkyl and halo; R 3 is selected from the group consisting of H, C 1-8 alkyl, halo, and CN; alternatively R 2 and R 3 , together with the atoms to which they are attached, form a six- or seven-membered ring structure where one or more of the atoms forming the ring may be oxygen; R 4 is selected from the group consisting of H, OH, C 1-8 alkyl, OC 1-8 alkyl and halo; R 5 is selected from the group consisting of H, OH, CN, nitro, C 1-8 alkyl, OC 1-8 alkyl and halo; R 8 is selected from the group consisting of aryl, C 1-8 alkyl, OH, and OC 1-8 alkyl, wherein said R 8 is optionally substituted with 1 to 2 substituents selected from halo, nitro, OH, CN, C 1-4 alkyl, OC 1-4 alkyl, NH 2 , and NHC(O)OC(CH 3 ) 3 ; and the bond represented by a broken line and a solid line is an optional double bond.