Patent ID: 7101993

Claim:
A compound having the structure: wherein X is R 1 —(R 2 ) n ; R 1 is C 2 -C 20 alkyl, C 2 -C 20 alkenyl, or C 2 -C 20 alkynyl and n is 1 to 6; R 2 is halogen, nitro, nitroso, nitrile, trifluoromethyl, trifluoromethoxy, O-alkyl, S-alkyl, NH-alkyl, N-dialkyl, O-aryl, S-aryl, NH-aryl, O-aralkyl, S-aralkyl, NH-aralkyl, imidazole, N-phthalimido, azido, hydrazino, hydroxylamino, isocyanato, sulfoxide, sulfone, sulfide, disulfide, silyl, aryl, heterocycle, carbocycle, intercalator, reporter molecule, conjugate, polyamine, polyamide, polyalkylene glycol, or polyether; and either one of T 3 and T 5 is OH, a hydroxyl blocking group, phosphate or an activated phosphate group and the other of T 3 and T 5 is a nucleotide or both T 3 and T 5 are nucleotides.