2′-Deoxy-N-(2-methyl-1-oxopropyl)-5′-O-[3,3,7,10-tetramethyl-1,1-bis(1-methylethyl)-6,11,17-trioxo-2-oxa-7,10-diaza-1-silaoctadec-1-yl]guanosine

N-Benzoyl-2′-deoxy-5′-O-[3,3,7,10-tetramethyl-1,1-bis(1-methylethyl)-6,11,17-trioxo-2-oxa-7,10-diaza-1-silaoctadec-1-yl]cytidine

N-Benzoyl-2′-deoxy-5′-O-[3,3,7,10-tetramethyl-1,1-bis(1-methylethyl)-6,11,17-trioxo-2-oxa-7,10-diaza-1-silaoctadec-1-yl]adenosine

2-Amino-7-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-3,7-dihydro-6-iodo-4H-pyrrolo[2,3-d]pyrimidin-4-one

2-Amino-6-bromo-7-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

2-Amino-6-chloro-7-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

1-[(5E)-5,6-Dideoxy-2-O-(2-methoxyethyl)-6-phosphono-β-D-ribo-hex-5-enofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

5-Amino-1-[2,3-O-[(R)-[4-(hydroxymethyl)phenyl]methylene]-β-D-ribofuranosyl]-1H-imidazole-4-carboxamide

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-(2,2-dimethyl-1-oxopropyl)-2′-O-[1-(2-fluorophenyl)-4-methoxy-4-piperidinyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Adenosine, N-(7-carboxy-7-formyl-7,8-dihydro-3-β-D-ribofuranosyl-3H-imidazo[2,1-i]purin-8-yl)-

Cytidine, 2′-deoxy-N-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethyl]-5-methyl-

Cytidine, 2′-deoxy-5-methyl-N-propyl-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-methyl-N-(trifluoroacetyl)-N-[3-[(trifluoroacetyl)[4-[(trifluoroacetyl)[3-[(trifluoroacetyl)amino]propyl]amino]butyl]amino]propyl]-

Cytidine, N-[3-[[4-[(3-aminopropyl)amino]butyl]amino]propyl]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-methyl-

Adenosine, N-acetyl-2-(acetylamino)-3′-deoxy-, 2′-acetate 5′-(4-methylbenzenesulfonate)

Guanosine, N-acetyl-3′-deoxy-, 2′-acetate 6-(diphenylcarbamate) 5′-(4-methylbenzenesulfonate)

2′-Deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidine

Pyridinium, 3-carboxy-1-β-D-ribofuranosyl-, hydroxide, inner salt, 5′-ester with adenosine 5′-(trihydrogen pyrophosphate)