3-Pyridinecarboxamide, 1,4-dihydro-1-[5-O-[hydroxy(phosphonooxy)phosphinyl]-β-D-ribofuranosyl]-, P′→5 ester with phenyl β-D-ribofuranoside

5′-Cytidylic acid, 2′-deoxy-5-ethyl-

4-Amino-1-(2-deoxy-5-O-phosphono-α-D-erythro-pentofuranosyl)-5-ethyl-2(1H)-pyrimidinone

Cytidine, 2′-deoxy-5-ethyl-, 3′,5′-bis(4-methylbenzoate)

4-Amino-1-[2-deoxy-3,5-bis-O-(4-methylbenzoyl)-α-D-erythro-pentofuranosyl]-5-ethyl-2(1H)-pyrimidinone

1-(2-Deoxy-α-D-erythro-pentofuranosyl)-5-ethyl-3,4-dihydro-4-thioxo-2(1H)-pyrimidinone

9-(2-Deoxy-α-D-erythro-pentofuranosyl)-6-methoxy-9H-purin-2-amine

1-[3,5-Bis-O-(4-chlorobenzoyl)-2-deoxy-α-D-erythro-pentofuranosyl]-5-ethyl-3,4-dihydro-4-thioxo-2(1H)-pyrimidinone

3′-Uridylic acid, 2′-deoxy-5-fluoro-, mono(4-aminophenyl) ester, 5′-(dihydrogen phosphate)

Thymidine, 5′-O-phosphonothymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-

Cytidine, 2′,3′-O-[(2,4-dimethoxyphenyl)methylene]-5′-O-(1,1-dioxido-1,2-benzisothiazol-3-yl)-

7(8H)-Pteridinone, 8-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-2-[(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)amino]-

5-Methyl-4-β-D-ribofuranosylpyrazolo[1,5-a]pyrimidin-7(4H)-one

3-(2,3,5-Tri-O-acetyl-β-D-ribofuranosyl)pyrazolo[1,5-a]-1,3,5-triazin-4(3H)-one

2-(Methylthio)-3-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)pyrazolo[1,5-a]-1,3,5-triazin-4(3H)-one

4-β-D-Ribofuranosylpyrazolo[1,5-a]pyrimidin-7(4H)-one

3′-Adenylic acid, monoethyl ester

Uridine, 2′-O-(tetrahydro-2H-pyran-2-yl)uridylyl-(3′→5′)-

Uridine, 2′-chloro-2′-deoxyuridylyl-(3′→5′)-

Cytidine, 2′-deoxyuridylyl-(3′→5′)-2′-deoxy-