D-glycero-β-D-galacto-2-Nonulopyranosonic acid, 3-deoxy-, methyl ester, 4,5,7,8,9-pentaacetate 2-(2-cyanoethyl N-acetyl-2′,3′-di-O-acetyl-5′-cytidylate)

D-glycero-β-D-galacto-2-Nonulopyranosonic acid, 3-deoxy-, methyl ester, 4,5,7,8,9-pentaacetate 2-(2-cyanoethyl hydrogen phosphite), 5′-ester with N-acetylcytidine 2′,3′-diacetate

N′-[8-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-L-erythro-pentofuranosyl]-4,8-dihydro-4-oxoimidazo[1,2-a]-1,3,5-triazin-2-yl]-N,N-dibutylmethanimidamide

N′-[8-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-L-erythro-pentofuranosyl]-4,8-dihydro-4-oxoimidazo[1,2-a]-1,3,5-triazin-2-yl]-N,N-dibutylmethanimidamide

N,N-Dibutyl-N′-[8-(2-deoxy-β-L-erythro-pentofuranosyl)-4,8-dihydro-4-oxoimidazo[1,2-a]-1,3,5-triazin-2-yl]methanimidamide

1-[2-Deoxy-3-O-[(1,1-dimethylethyl)diphenylsilyl]-β-L-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2-Chloro-2-deoxy-3-O-[(1,1-dimethylethyl)diphenylsilyl]-β-L-ribofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

2-Amino-1-[3-O-[(1,1-dimethylethyl)diphenylsilyl]-β-L-arabinofuranosyl]-5-methyl-4(1H)-pyrimidinone

2H,3H,6H-Furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one, 3-[[(1,1-dimethylethyl)diphenylsilyl]oxy]-3a,9a-dihydro-2-(hydroxymethyl)-7-methyl-, (2S,3S,3aR,9aS)-

2H,3H,6H-Furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one, 3-[[(1,1-dimethylethyl)diphenylsilyl]oxy]-3a,7,8,9a-tetrahydro-2-(hydroxymethyl)-7-methylene-, (2S,3S,3aR,9aS)-

Ethyl (3aS,5S,6S,6aR)-6-[[(1,1-dimethylethyl)diphenylsilyl]oxy]tetrahydro-5-(hydroxymethyl)-2-imino-α-methylenefuro[2,3-d]oxazole-3(2H)-propanoate