5-Methyl-1-[2,3,6-tri-O-acetyl-5-deoxy-5-[[[(2R)-1-[(1,1-dimethylethoxy)carbonyl]-2-pyrrolidinyl]carbonyl]amino]-β-D-allofuranosyl]-2,4(1H,3H)-pyrimidinedione

3,7-Dimethyl (7aS,10aR,10bS)-1-ethyl-1,4,8,9,10,10a-hexahydro-2-methyl-6,8,10-trioxo-4,9-diphenyl-6H-7,10b-epoxypyrrolo[3′,4′:3,4]pyrido[1,2-a]pyrimidine-3,7(7aH)-dicarboxylate

1-[2,3,6-Tri-O-acetyl-5-deoxy-5-[[(2S)-2-[[(1,1-dimethylethoxy)carbonyl]amino]-1-oxopropyl]amino]-β-D-allofuranosyl]-2,4(1H,3H)-pyrimidinedione

5-Fluoro-1-[2,3,6-tri-O-acetyl-5-deoxy-5-[[[(2R)-1-[(1,1-dimethylethoxy)carbonyl]-2-pyrrolidinyl]carbonyl]amino]-β-D-allofuranosyl]-2,4(1H,3H)-pyrimidinedione

N-[1,2-Dihydro-2-oxo-1-[2,3,6-tri-O-acetyl-5-deoxy-5-[[(2S)-2-[[(1,1-dimethylethoxy)carbonyl]amino]-1-oxopropyl]amino]-β-D-allofuranosyl]-4-pyrimidinyl]acetamide

1-(2-Deoxy-5-O-phosphono-β-D-erythro-pentofuranosyl)-1,2-dihydropyrimidine

1,2-Dihydro-1-β-D-ribofuranosylpyrimidine

2-(5′-Adenylylamino)benzoic acid

5′-Uridylic acid, anhydride with butanoic acid (1:1)

5′-Inosinic acid, anhydride with butanoic acid (1:1)

3′-Deoxy-3′-oxo-5′-adenylic acid

9-[5-O-[Hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranos-3-ulos-1-yl]-9H-purin-6-amine

N1-[5-Amino-1-(5-O-phosphono-β-D-ribofuranosyl)-1H-imidazol-4-yl]butanediamide

N-(5-Amino-1-β-D-ribofuranosyl-1H-imidazol-4-yl)carbamic acid

1-[2-Deoxy-5-O-[[[[(6-deoxy-5-C-methyl-α-D-erythro-hexopyranos-4-ulos-1-yl)oxy]hydroxyphosphinyl]oxy]hydroxyphosphinyl]-β-D-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

8-Bromo-8-(9H-fluoren-2-ylamino)-7,8-dihydroguanosine

2′-Deoxy-2′-oxoinosine

2′-Deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-2-propen-1-yladenosine

6-Chloro-9-[2-deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-5-O-2-propen-1-yl-β-D-erythro-pentofuranosyl]-9H-purine

8-(9H-Fluoren-2-ylamino)-7,8-dihydro-8-methylguanosine