(5R)-1-[2-Deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-α-D-erythro-pentofuranosyl]-5-hydroxy-5-methyl-2,4-imidazolidinedione

(5S)-1-[2-Deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-5-hydroxy-5-methyl-2,4-imidazolidinedione

(5R)-1-[2-Deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-5-hydroxy-5-methyl-2,4-imidazolidinedione

(5S)-5-Hydroxy-5-methyl-1-(2,3,5-tri-O-acetyl-α-D-ribofuranosyl)-2,4-imidazolidinedione

(5R)-5-Hydroxy-5-methyl-1-(2,3,5-tri-O-acetyl-α-D-ribofuranosyl)-2,4-imidazolidinedione

(5R)-1-[2-Deoxy-3,5-bis-O-(phenylmethyl)-β-D-erythro-pentofuranosyl]-5-hydroxy-5-methyl-3-(phenylmethyl)-2,4-imidazolidinedione

(5S)-1-[2-Deoxy-3,5-bis-O-(phenylmethyl)-β-D-erythro-pentofuranosyl]-5-hydroxy-5-methyl-3-(phenylmethyl)-2,4-imidazolidinedione

(5R)-1-[2-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-5-hydroxy-5-methyl-2,4-imidazolidinedione

(5R)-5-Hydroxy-5-methyl-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-2,4-imidazolidinedione

1,3-Bis(1,1-dimethylethyl) 2-[2-chloro-9-[2-deoxy-3-O-[(1,1-dimethylethoxy)carbonyl]-2-fluoro-5-O-[2-oxo-2-(phenylmethoxy)-1-[(phenylmethoxy)carbonyl]ethyl]-β-D-arabinofuranosyl]-9H-purin-6-yl]imidodicarbonate

(3aR,4S,7aR)-3a-Ethylhexahydro-2-hydroxy-4-methoxy-2-(phenylmethyl)-7-(2-propen-1-yl)furo[2,3-b]pyridin-6(2H)-one

2-Amino-5′-S-(2-hydroxyethyl)-5′-thioadenosine

2-Fluoro-5′-S-(2-hydroxyethyl)-5′-thioadenosine

Cytidine, 2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

Guanosine, 2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-3′-thiouridylyl-(3′→5′)-2′-deoxy-