1,4-Dihydro-1-methyl-7-(methylthio)-4-β-D-ribofuranosyl-5H-pyrazolo[4,3-d]pyrimidin-5-one

1,4,6,7-Tetrahydro-1-methyl-4-β-D-ribofuranosyl-7-thioxo-5H-pyrazolo[4,3-d]pyrimidin-5-one

2-Methyl-4-β-D-ribofuranosyl-2H-pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione

1-Methyl-4-β-D-ribofuranosyl-1H-pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione

2′-Deoxy-5′-O-phosphonocytidylyl-(3′→5′)-1-(1,4-anhydro-2-deoxy-D-arabinitol-2-yl)-1-de(2-deoxy-β-D-erythro-pentofuranosyl)thymidine

9-[1,4-Anhydro-2-deoxy-5-O-(ethoxyhydroxyphosphinyl)-D-arabinitol-2-yl]-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-cytidine

9-(1,4-Anhydro-2-deoxy-5-O-phosphono-D-arabinitol-2-yl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-uridine

9-(1,4-Anhydro-2-deoxy-5-O-phosphono-D-arabinitol-2-yl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-2′-deoxyadenosine

9-(1,4-Anhydro-2-deoxy-D-arabinitol-2-yl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-cytidine

9-(1,4-Anhydro-2-deoxy-D-arabinitol-2-yl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-uridine

9-(1,4-Anhydro-2-deoxy-D-arabinitol-2-yl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-2′-deoxyadenosine

2′-Deoxyadenylyl-(3′→5′)-1-(1,4-anhydro-2-deoxy-D-arabinitol-2-yl)-1-de-β-D-ribofuranosyladenosine

2′-Deoxyadenylyl-(3′→5′)-1-(1,4-anhydro-2-deoxy-D-arabinitol-2-yl)-1-de-β-D-ribofuranosylcytidine

Cytidine, 9-[1,4-anhydro-5-O-[(2-cyanoethoxy)ethoxyphosphinyl]-2-deoxy-D-arabinitol-2-yl]-N-benzoyl-P-(2-cyanoethyl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-N-benzoyl-, 2′,3′-dibenzoate

Cytidine, 9-[1,4-anhydro-5-O-[bis(2-cyanoethoxy)phosphinyl]-2-deoxy-D-arabinitol-2-yl]-N-benzoyl-P-(2-cyanoethyl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-N-benzoyl-, 2′,3′-dibenzoate

Uridine, 9-[1,4-anhydro-5-O-[bis(2-cyanoethoxy)phosphinyl]-2-deoxy-D-arabinitol-2-yl]-N-benzoyl-P-(2-cyanoethyl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-3-benzoyl-, 2′,3′-dibenzoate

Adenosine, 9-[1,4-anhydro-5-O-[bis(2-cyanoethoxy)phosphinyl]-2-deoxy-D-arabinitol-2-yl]-N-benzoyl-P-(2-cyanoethyl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-benzoate

Cytidine, 9-(1,4-anhydro-2-deoxy-D-arabinitol-2-yl)-N-benzoyl-P-(2-cyanoethyl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-N-benzoyl-, 2′,3′-dibenzoate

Uridine, 9-(1,4-anhydro-2-deoxy-D-arabinitol-2-yl)-N-benzoyl-P-(2-cyanoethyl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-3-benzoyl-, 2′,3′-dibenzoate

Adenosine, 9-(1,4-anhydro-2-deoxy-D-arabinitol-2-yl)-N-benzoyl-P-(2-cyanoethyl)-9-de-β-D-ribofuranosyladenylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-benzoate