Patent ID: 8071589

Claim:
A compound according to Formula I or a pharmaceutically acceptable salt thereof wherein R1 is phenyl, optionally substituted with halogen, nitro, (1-6C)alkyl, (2-6C)alkenyl, (1-6C)alkoxy, (2-5C)heteroaryl, (3-6C)cycloalkyl; or R1 is (2-5C)heteroaryl, optionally fused with a benzo group and optionally substituted at the heteroaryl or benzo group with halogen or (1-4C)alkyl; or R1 is (2-5C)heterocycloalkyl or (2-5C)heterocycloalkenyl, both optionally substituted with one or more fluorines, (1-2C)alkyl groups or (1-3C)alkoxy groups; R2 is (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl, (1-6C)alkoxy or (1-4C)alkylsulfonamino, all alkyl groups optionally substituted with one or more hydroxyl or fluorines; or R2 is (2-5C)heteroaryl, R5-carbonylamino or R5-aminocarbonyl R3 (1-6C)alkoxy or hydroxyl; R4 is (di)[(1-6C)alkyl]amino; or R4 is pyrrolidin-1-yl, optionally substituted with one or more (1-2C)alkyl groups; or R4 is diazacycloheptyl, optionally substituted with (1-6C)alkylcarbonyl or (3-6C)cycloalkylcarbonyl; or R4 is R5 is (2-5C)heteroaryl or (1-6C)alkyl, both optionally substituted with one or more hydroxyl groups or halogens; or R5 is (2-5C)heterocycloalkyl(1-4C)alkyl, the heterocycloalkyl group optionally substituted with (1-4C)alkyl or (di)[(1-4C)alkyl]amino(1-4C)alkyl; and R6 is (1-6C)alkyl.