Patent ID: 7223766

Claim:
A compound of the formula or a pharmaceutically acceptable salt thereof, wherein X is C and n is 2-5 so as to form a fused ring between positions 5 and 6 of ring A wherein said fused ring is optionally substituted, is saturated, unsaturated or aromatic with the proviso that if n is 4, the fused ring is not aromatic; wherein Ar 2 is an optionally substituted aromatic or optionally substituted heteroaromatic moiety wherein said heteroaromatic moiety contains one or more O, S, and/or N; Ar 1 is a six-membered optionally substituted aromatic or optionally substituted heteroaromatic moiety wherein said heteroaromatic moiety contains one or more O, S, and/or N; and R 1 is H or optionally substituted alkyl (1-10C), alkenyl (2-10C), or alkynyl (2-10C).