Patent ID: 7625897

Claim:
A compound according to formula I: wherein X 1 is NR 8 ; R 1 is hydrogen, halogen, C 1-6 alkyl or C 1-6 alkoxy; R 2 is hydrogen or halogen; R 3 is phenyl optionally substituted with one to three substituents independently selected from the group consisting of C 1-6 alkyl, C 1-6 haloalkyl, C 3-8 cycloalkyl, halogen, cyano or nitro; R 4 is A1; R 5 and R 6 are independently hydrogen, C 1-10 alkyl, C 1-6 haloalkyl, hydroxy-C 1-6 alkyl or phenyl optionally substituted with 1 to 3 groups independently selected in each occurrence from the group consisting of C 1-6 alkyl, C 1-6 alkoxy, C 1-6 haloalkyl, halogen, hydroxy, nitro and cyano, or, R 5 and R 6 together are (CH 2 ) n ; R 7 is hydrogen, C 1-10 alkyl or phenyl; R 8 is hydrogen or C 1-6 alkyl; n is 2 to 4; or, a pharmaceutically acceptable salts thereof.