Patent ID: 7662818

Claim:
A compound of the formula (I): or an isomer thereof, or a salt thereof, wherein: A and B together represent an optionally substituted, fused aromatic ring; X is CR X R Y ; n is 1; R X is selected from hydrogen, optionally substituted C 1-20 alkyl, optionally substituted C 5-20 aryl, optionally substituted C 3-20 heterocyclyl, optionally substituted amido, optionally substituted thioamido, optionally substituted ester, optionally substituted acyl, and optionally substituted sulfonyl groups; R Y is selected from hydrogen, hydroxy, and amino; or R X and R Y may together form a spiro-C 3-7 cycloalkyl or heterocyclyl group; R C1 and R C2 are both hydrogen, or R C1 , R C2 , R X and R Y together with the carbon atoms to which they are attached, may form an optionally substituted fused aromatic ring; and R 1 is selected from hydrogen and halo.