6-Chloro-2-methyl-9-(5-O-methyl-β-D-ribofuranosyl)-9H-purine

6-Chloro-2-methyl-9-[5-O-methyl-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-9H-purine

Inosine, 2-methyl-5′-O-methyl-2′,3′-O-(1-methylethylidene)-

1-(2-Deoxy-α-D-erythro-pentofuranosyl)pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione

1-(3,5-Di-O-acetyl-2-deoxy-α-D-erythro-pentofuranosyl)pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione

1-α-D-Arabinofuranosyl-2,4(1H,3H)-pteridinedione

1-(2,3,5-Tri-O-benzoyl-α-D-arabinofuranosyl)-2,4(1H,3H)-pteridinedione

1-α-D-Arabinofuranosylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione

1-(2,3,5-Tri-O-benzoyl-α-D-arabinofuranosyl)pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione

3,4-Dihydro-1-β-D-ribofuranosyl-4-thioxopyrimido[4,5-d]pyrimidin-2(1H)-one

3,4-Dihydro-4-thioxo-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrimido[4,5-d]pyrimidin-2(1H)-one

1-β-D-Ribofuranosylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione

1-(2,3,5-Tri-O-benzoyl-β-D-ribofuranosyl)pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione

Adenosine, uridylyl-(3′→5′)-guanylyl-(3′→5′)-guanylyl-(3′→5′)-guanylyl-(3′→5′)-cytidylyl-(3′→5′)-

Cytidine, P(S)-(2-cyanoethyl)-2′-deoxy-6-O-(2,5-dichlorophenyl)-N-(2-methyl-1-oxopropyl)-P-thioguanylyl-(3′→5′)-N-benzoyl-P(S)-(4-chlorophenyl)-2′-deoxy-P-thioadenylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-(4-oxopentanoate)

Cytidine, N-benzoyl-P(S)-(4-chlorophenyl)-2′-deoxy-P-thioadenylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-(4-oxopentanoate)

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P(S)-(2-cyanoethyl)-2′-deoxy-6-O-(2,5-dichlorophenyl)-N-(2-methyl-1-oxopropyl)-P-thioguanylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-(4-oxopentanoate)

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P(S)-(4-chlorophenyl)-P-thiothymidylyl-(3′→5′)-2′-deoxy-6-O-(2,5-dichlorophenyl)-N-(2-methyl-1-oxopropyl)-, 3′-(4-oxopentanoate)

Cytidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P(S)-(4-chlorophenyl)-2′-deoxy-P-thioadenylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-(4-oxopentanoate)

1-[(5R,6R,8R,9R)-4-Amino-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-6-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2,2-dioxido-1,7-dioxa-2-thia-3-azaspiro[4.4]non-3-en-8-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione