Patent ID: 8399459

Claim:
A compound of formula I wherein R 1 is selected from the group consisting of i) hydrogen, ii) halogen, and iii) C 1-6 -alkyl; R 2 is selected from the group consisting of i) hydrogen, ii) C 1-6 -alkyl, iii) heteroaryl, iv) heteroaryl substituted by 1-4 substituents individually selected from halogen, halogen-C 1-6 -alkoxy, halogen-C 1-6 -alkyl, C 1-6 -alkoxy, C 1-6 -alkoxy-C 1-6 -alkyl and C 1-6 -alkyl, v) aryl, and vi) aryl substituted by 1-4 substituents individually selected from halogen, halogen-C 1-6 -alkoxy, halogen-C 1-6 -alkyl, C 1-6 -alkoxy, C 1-6 -alkoxy-C 1-6 -alkyl and C 1-6 -alkyl; R 3 and R 4 together with the C to which they are attached form a group selected from the group consisting of i) aryl, ii) aryl substituted by 1-4 substituents individually selected from acetamidyl, amino, amido, —C(O)-heterocyclyl, cyano, cyano-C 1-6 -alkyl, halogen, halogen-C 1-6 -alkoxy, halogen-C 1-6 -alkyl, C 1-6 -alkoxy, C 1-6 -alkoxy-C 1-6 -alkyl and C 1-6 -alkyl, iii) heteroaryl, iv) heteroaryl substituted by 1-4 substituents individually selected from cyano, cyano-C 1-6 -alkyl, halogen, halogen-C 1-6 -alkoxy, halogen-C 1-6 -alkyl, C 1-6 -alkoxy, C 1-6 -alkoxy-C 1-6 -alkyl and C 1-6 -alkyl, v) C 2-6 -alkynyl, vi) C 2-6 -alkynyl substituted by 1-5 substituents individually selected from aryl, cyano, halogen-aryl, halogen, halogen-heteroaryl, heteroaryl, ydroxyl, C 1-6 -alkyl, C 1-6 -alkyl-aryl, C 1-6 -alkyl-heteroaryl and C 1-6 -alkoxy, vii) C 3-6 -cycloalkyl, viii) C 3-6 -cycloalkyl substituted by 1-4 substituents individually selected from cyano, cyano-C 1-6 -alkyl, halogen, halogen-C 1-6 -alkoxy, halogen-C 1-6 -alkyl, ydroxyl, C 1-6 -alkoxy, C 1-6 -alkoxy-C 1-6 -alkyl and C 1-6 -alkyl, ix) heterocyclyl, and x) heterocyclyl substituted by 1-4 substituents individually selected from halogen, halogen-C 1-6 -alkoxy, halogen-C 1-6 -alkyl, ydroxyl, C 1-6 -alkoxy, C 1-6 -alkoxy-C 1-6 -alkyl and C 1-6 -alkyl; R 5 is selected from the group consisting of i) hydrogen, ii) halogen, and iii) C 1-6 -alkyl; or a pharmaceutically acceptable salt thereof.