Patent ID: 8822527

Claim:
A compound of Formula (I) or a pharmaceutically acceptable salt thereof: wherein: n is selected from the group consisting of 0, 1, 2, 3, 4, and 5; each R 1 is independently selected from the group consisting of halo, cyano, and azido; Z 1 , Z 2 , Z 3 , and Z 4 are each independently —CH—; R 2 is selected from the group consisting of an optionally substituted (C 2-6 alkoxy)C 1-6 alkyl, an optionally substituted C 6-10 aryl, an optionally substituted (aryloxy)C 1-6 alkyl, an optionally substituted pyrrolidinyl, an optionally substituted C 3-7 cycloalkyl, an optionally substituted haloalkyl, and an optionally substituted aminoalkyl; R 3 is —OH; R 4 is R 5 is —OH; R 6 is selected from the group consisting of —OH, —NHR 7 , an optionally substituted C 1-6 alkyl, an optionally substituted C 1-6 alkoxy, an optionally substituted C 6-10 aryl, an optionally substituted aryloxy, and an optionally substituted arylalkoxy; R 7 is hydrogen or an optionally substituted C 1-6 alkyl.