Patent ID: 7683171

Claim:
A compound of formula (I), or pharmaceutically acceptable salt thereof, wherein R 1 is selected from C 1-3 alkyl; R 2 is hydrogen; R 5 is —NR 3 R 4 ; R 3 and R 4 are independently selected from (a) hydrogen, or (b) alkyl; R 6 is aryl, which may be optionally independently substituted as valence allows with one or more Z 1d , Z 2d and Z 3d ; R 7 is (a) hydrogen, or halo, Z 1d , Z 2d and Z 3d are independently (1) H (7) —U 1 -halo, (10) —U 1 —NY 2 Y 3 , (11) —U 1 —N(Y 4 )—C(O)—Y 1 , Y 1 , Y 2 , Y 3 , Y 4 and Y 5 (1) are each independently hydrogen, alkyl, (alkoxy)alkyl, cycloalkyl, (cycloalkyl)alkyl, aryl, (aryl)alkyl, piperidinyl, pyrrolidinyl, thiadiazolyl, pyridinyl, pyradizinyl, pyrazinyl, isoxazolyl, imidazolyl, or (imidazolyl)alkyl, any of which may be optionally independently substituted as valence allows with one or more Z 4 , Z 5 and Z 6 ; or Z 4 , Z 5 , and Z 6 are optional substituents at each occurrence independently selected from (1) H (2) alkyl; (3) —U 1 —O—Y 5a , (8) —U 1 -cyano, (10) —U 1 —NY 2a Y 3a , (11) —U 1 —N(Y 4a )—C(O)—Y 1a , (16) —U 1 —N(Y 4a )—S(O) 2 —Y 1a , Y 1a , Y 2a , Y 3a , Y 4a and Y 5a (1) are each independently hydrogen, or alkyl; U 1 is independently (1) a single bond, (2) alkylene.