Patent ID: 8865719

Claim:
A compound of Formula I: or a pharmaceutically acceptable salt thereof, wherein: n is 1-5; R 1 is selected from the group consisting of hydrogen, unsubstituted or substituted alkyl and unsubstituted or substituted cycloalkyl; each R 2 is independently selected from the group consisting of hydrogen, fluoro, chloro, bromo, iodo, C 1-10 alkoxy, nitro, haloC 1-10 alkyl, perhaloC 1-10 alkyl and unsubstituted or substituted C 1-10 alkyl; A, E and F are independently selected from the group consisting CR 3 and nitrogen; B is nitrogen; G and D are each carbon; each R 3 is independently selected from the group consisting of hydrogen and unsubstituted or substituted alkyl; and R 4 , R 5 and R 6 are independently selected from the group consisting of hydrogen and unsubstituted or substituted alkyl.