Ethanethioic acid, S-[1-[3,5-bis-O-(4-chlorobenzoyl)-2-deoxy-α-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl] ester

4-Amino-1-[5-O-(ethoxyhydroxyphosphinyl)-β-D-arabinofuranosyl]-2(1H)-pyrimidinone

4-Amino-1-[5-O-(hydroxy-4-morpholinylphosphinyl)-β-D-arabinofuranosyl]-2(1H)-pyrimidinone

4-Amino-8-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-2,7(1H,8H)-pteridinedione

Adenine, 9-(3,5-anhydro-2-deoxy-β-D-threo-pentofuranosyl)-

1-[2-Deoxy-3,5-bis-O-(4-nitrobenzoyl)-α-D-erythro-pentofuranosyl]-5-(trifluoromethyl)-2,4(1H,3H)-pyrimidinedione

3′-Guanylic acid, N-benzoyl-2′,5′-di-O-benzoylcytidylyl-(3′→5′)-2′-O-benzoyl-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-N-benzoyl-2′-O-benzoylcytidylyl-(3′→5′)-N-(2-methyl-1-oxopropyl)-, 2′-benzoate

3′-Guanylic acid, 2′-O-benzoyl-5′-O-[(4-methoxyphenyl)diphenylmethyl]uridylyl-(3′→5′)-2′-O-benzoyl-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-N-benzoyl-2′-O-benzoylcytidylyl-(3′→5′)-N-(2-methyl-1-oxopropyl)-, 2′-benzoate

3′-Guanylic acid, cytidylyl-(3′→5′)-guanylyl-(3′→5′)-cytidylyl-(3′→5′)-

Guanosine, 5′-O-[(4-methoxyphenyl)diphenylmethyl]-N-(2-methyl-1-oxopropyl)-, 2′-benzoate 3′-[hydrogen [4-(methylsulfinyl)phenyl]phosphoramidate]

Guanosine, 5′-O-[(4-methoxyphenyl)diphenylmethyl]-N-(2-methyl-1-oxopropyl)-, 2′-benzoate 3′-[hydrogen [4-(methylthio)phenyl]phosphoramidate]

Thymidine, 5′-O-benzoyl-P-(2-cyanoethyl)thymidylyl-(3′→5′)-

3′-Thymidylic acid, mono(2-cyanoethyl) ester, 5′-benzoate

Adenosine, 5′-[hydrogen (1-aminoethyl)phosphonate]

Adenosine, 2′,3′-O-(1-methylethylidene)-, 5′-[hydrogen [1-[[(phenylmethoxy)carbonyl]amino]ethyl]phosphonate]

Uridine, 2′,3′-O-(1-methylethylidene)-, 5′-[hydrogen [1-[[(phenylmethoxy)carbonyl]amino]ethyl]phosphonate]

Adenosine, 8-azido-2′,3′-O-(ethoxymethylene)-, (R)-

Adenosine, 8-azido-2′,3′-O-(ethoxymethylene)-, (S)-

Adenosine, 3′-amino-3′-deoxy-N,N-dimethyladenylyl-(3′→5′)-

Cytidine, 3′-amino-3′-deoxy-N,N-dimethyladenylyl-(3′→5′)-