Patent ID: 7718688

Claim:
A compound of Formula I, wherein X, Y, and W are independently selected from H, halogen, C 1-4 alkyl, OR 1 , OP(O)(OH) 2 , SR 1 , NR 1 2 , COR 1 , SOR 1 , SO 2 R 1 , SO 2 NR 1 2 , SO 2 NR 1 OR 1 , SO 2 NR 1 NR 1 2 , SO 2 NHCOR 1 , CO 2 R 1 , CONR 1 2 , CONHSO 2 R 1 , CF 3 , CN, NO 2 , where X and Y are located at any one of the available positions 6-9, and where each R 1 independently represents H or a C 1-4 alkyl, optionally substituted with one or more hydroxyl or amino groups, each hydroxyl group being further optionally substituted with a phosphate [P(O)(OH) 2 ] group, and each amino group being further optionally substituted with one or two C 1-4 alkyl groups, and wherein Z may be selected from the following structures (Ia-Ic) wherein E may be selected from —N═ or —CH═, G may be-selected from O, S, or NH, Q may be independently selected from one to three of R 2 , OR 2 , OP(O)(OH) 2 halogen, NR 2 2 , NO 2 , CO 2 R 2 , CONR 2 2 , NR 2 COR 2 , where each R 2 independently represents H, lower C 1-4 alkyl, optionally substituted with one or more hydroxyl or amino groups, each hydroxyl group being further optionally substituted with a phosphate [P(O)(OH) 2 ] group, each amino group being optionally substituted with one or two C 1-4 alkyl groups; and CYC may represent a 5- or 6-membered carbocycle, or heterocycle containing one or two atoms independently selected from N, O and S, and physiologically functional salt derivatives thereof, with the proviso that when W represents H, X and Y do not each represent H.