Patent ID: 7504489

Claim:
A compound represented by the formula: wherein A is —S—Y or —O—Y, wherein Y is a substituted phenyl group, a substituted pyridyl group, a nicotinamide group, or a hydroxy-substituted nicotinamide group and wherein the phenyl group is substituted with a halogen, thiol, amino, oxygen or carboxyamine; B is hydrogen, or a halogen, or an amino group; C is hydrogen, or a halogen, or an amino group; and D is a primary alcohol, a hydrogen, or an oxygen, nitrogen, carbon, or sulfur linked to phosphate, a phosphoryl group, a pyrophosphoryl group, or adenosine monophosphate through a phosphodiester or carbon-, nitrogen-, or sulfur-substituted, phosphodiester bridge, or to adenosine diphosphate through a phosphodiester or carbon-, nitrogen-, or sulfur-substituted pyrophosphodiester bridge.