4-Oxa-5-azaspiro[2.4]heptane-6-carboxylic acid, 5-[2,3:5,6-bis-O-(1-methylethylidene)-α-D-mannofuranosyl]-, ethyl ester, (S)-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-S-(1-pyrenylmethyl)-2′-thio-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Guanosine, 3′-O-[[[3-[(4-azido-2,3,5,6-tetrafluorobenzoyl)amino]propyl]amino]hydroxyphosphinyl]-2′-deoxycytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

N-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-6,7-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

N-[7-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-6,7-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

N-[7-(2-Deoxy-β-D-erythro-pentofuranosyl)-6,7-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

Guanosine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′,5′-dibenzoate

N-[7-(3,5-Di-O-benzoyl-2-deoxy-β-D-erythro-pentofuranosyl)-6,7-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

3′-Thymidylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-6-[1-[3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-1,2-dihydro-5-methyl-2-oxo-4-pyrimidinyl]-5,6-dihydro-5-hydroxy-, mono(2-cyanoethyl) ester, intramol. 3′,5′′′-ester, [3′(R),5R,6S]-

3′-Thymidylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-6-[1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2-dihydro-5-methyl-2-oxo-4-pyrimidinyl]-5,6-dihydro-5-hydroxy-, mono(2-cyanoethyl) ester, intramol. 3′,5′′′-ester, [3′(R),5R,6S]-

3′-Thymidylic acid, 3-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-6-[1-[2-deoxy-3-O-(1,4-dioxopentyl)-β-D-erythro-pentofuranosyl]-1,2-dihydro-5-methyl-2-oxo-4-pyrimidinyl]-5,6-dihydro-5-hydroxy-, mono(2-cyanoethyl) ester, intramol. 3′,5′′′-ester, [3′(R),5R,6S]-

3′-Thymidylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-6-[1-[2-deoxy-3-O-(1,4-dioxopentyl)-β-D-erythro-pentofuranosyl]-1,2-dihydro-5-methyl-2-oxo-4-pyrimidinyl]-5,6-dihydro-5-hydroxy-, mono(2-cyanoethyl) ester, intramol. 3′,5′′′-ester, [3′(R),5R,6S]-

3′-Thymidylic acid, 6-[1-[2-deoxy-3-O-(1,4-dioxopentyl)-β-D-erythro-pentofuranosyl]-1,2-dihydro-5-methyl-2-oxo-4-pyrimidinyl]-5,6-dihydro-5-hydroxy-, mono(2-cyanoethyl) ester, intramol. 3′,5′′′-ester, [3′(R),5R,6S]-

Thymidine, (R)-P-(2-cyanoethyl)thymidylyl-(3′→5′)-, 3′-(4-oxopentanoate)

3aH-Cyclohepta[b]furan-3,3a,8-triol, 2-(6-amino-9H-purin-9-yl)-2,3,4,7,8,8a-hexahydro-, 8-(dihydrogen phosphate), (2R,3R,3aS,8R,8aR)-

3aH-Cyclohepta[b]furan-3,3a,8-triol, 2-(6-amino-9H-purin-9-yl)-2,3,4,7,8,8a-hexahydro-, 8-(dihydrogen phosphate), (2R,3R,3aS,8S,8aR)-