1-[2-Deoxy-5-O-(1-hydroxy-8,8-dimethyl-1-oxido-5-oxo-2,4,6-trioxa-1-phosphanon-1-yl)-β-L-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

[[(2,2-Dimethylpropoxy)carbonyl]oxy]methyl hydrogen 3′-azido-3′-deoxy-5′-thymidylate

1-[5-O-(1-Hydroxy-7-methyl-1-oxido-5-oxo-2,4,6-trioxa-1-phosphaoct-1-yl)-β-D-ribofuranosyl]-1H-1,2,4-triazole-3-carboxamide

2,4,6-Trioxa-5-phosphaheptanoic acid, 7-[(2S,5R)-5-(1,6-dihydro-6-oxo-9H-purin-9-yl)tetrahydro-2-furanyl]-5-hydroxy-, 1-methylethyl ester, 5-oxide

9-[5-O-(1-Hydroxy-7-methyl-1-oxido-5-oxo-2,4,6-trioxa-1-phosphaoct-1-yl)-β-D-arabinofuranosyl]-9H-purin-6-amine

2,4,6-Trioxa-5-phosphaheptanoic acid, 7-[(2S,5R)-5-(4-amino-2-oxo-1(2H)-pyrimidinyl)tetrahydro-2-furanyl]-5-hydroxy-, 1-methylethyl ester, 5-oxide

1-[2-Deoxy-5-O-(1-hydroxy-7-methyl-1-oxido-5-oxo-2,4,6-trioxa-1-phosphaoct-1-yl)-β-L-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

[[(1-Methylethoxy)carbonyl]oxy]methyl hydrogen 3′-azido-3′-deoxy-5′-thymidylate

2-Amino-9-[(5S,7R,8R,10S,12aS,14R,15aS)-14-(6-amino-9H-purin-9-yl)decahydro-10-mercapto-2,2,10-trioxido-5,8-methanofuro[3,2-l][1,3,6,9,10,11,2]tetraoxathiaazaphosphacyclotetradecin-7-yl]-1,9-dihydro-6H-purin-6-one

N-[9-[(2S,5S,7R,8R,12aR,14R,15R,15aR)-7-[1,6-Dihydro-2-[(2-methyl-1-oxopropyl)amino]-6-oxo-9H-purin-9-yl]-15-fluorodecahydro-2-mercapto-2,10,10-trioxido-5,8-methanofuro[2,3-m]-1,3,6,9,10,11,2-tetraoxathiaazaphosphacyclotetradecin-14-yl]-9H-purin-6-yl]benzamide

N-[9-[(5S,7R,8R,10S,12aR,14R,15aS)-7-[1,6-Dihydro-2-[(2-methyl-1-oxopropyl)amino]-6-oxo-9H-purin-9-yl]octahydro-10-mercapto-2,2,10-trioxido-5,8-methano-3H,12H-furo[2,3-m]-1,6,9,11,2,3,10-tetraoxathiaazaphosphacyclotetradecin-14-yl]-9H-purin-6-yl]benzamide

7-(3-Deoxy-β-D-erythro-pentofuranosyl)-5-fluoro-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

7-(2,5-Di-O-acetyl-3-deoxy-β-D-erythro-pentofuranosyl)-5-fluoro-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

7-(2,5-Di-O-acetyl-3-bromo-3-deoxy-β-D-xylofuranosyl)-5-fluoro-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one