Patent ID: 7022680

Claim:
A compound represented by the formula: wherein A is selected from the group consisting of i, ii, iii, iv, v, vi, vii and viii, wherein i, ii, iii, iv, v, vi, vii and viii are the following: wherein each R is independently H or an electron-contributing moiety selected from methyl, ethyl, O-methyl, amino, NMe 2 , hydroxyl, CMe 3 , aryl or C3–C10 alkyl, provided at least one R is an electron contributing moiety, Z is a hydrogen, alkyl, aryl, hydroxyl, amino, OZ′ where Z′ is an alkyl or aryl, NHZ′ where Z′ is an alkyl or aryl, or NHZ′Z″ where Z′ and Z″ are independently an alkyl or aryl; B is hydrogen, or a halogen, amino, or thiol group; C is hydrogen, or a halogen, amino, or thiol 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.