Patent ID: 6936616

Claim:
A compound of Formula IV or a pharmaceutically acceptable salt thereof, wherein Each n independently is an integer of from 0 to 6; R 2 is hydrogen, halo, hydroxy, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, NO 2 , NR 4 R 5 , CN, or CF 3 ; and R 6 , R 7 , R 8 , and R 9 independently are hydrogen, halo, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, nitro, or NH 2 ; R 4 and R 5 independently are H, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, (CH 2 ) n aryl, (CH 2 ) n cycloalkyl, (CH 2 ) n heteroaryl, or R 4 and R 5 when taken together with the nitrogen to which they are attached complete a 3- to 8-membered ring containing carbon atoms and optionally containing a heteroatom selected from O, S, or NH, and optionally substituted or unsubstituted.