Thymidine, 2′-deoxy-5′-O-[hydroxy(2-hydroxyethoxy)phosphinyl]guanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→3′)-5′-O-[[3,4-bis(phenylmethoxy)phenyl]methyl]-

2-Amino-4,7-dihydro-N-hydroxy-4-oxo-7-β-D-ribofuranosyl-3H-pyrrolo[2,3-d]pyrimidine-5-carboximidamide

2-Amino-4,7-dihydro-7-[5-O-[(4-methoxyphenyl)diphenylmethyl]-β-D-ribofuranosyl]-4-oxo-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile

N-[4-Chloro-5-cyano-7-[5-O-[(4-methoxyphenyl)diphenylmethyl]-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-2-yl]-2,2-dimethylpropanamide

1-[6-[Bis(phenylmethoxy)phosphinyl]-2,5,6-trideoxy-3-O-[(phenylmethoxy)methyl]-β-D-erythro-hexofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[2,5,6-Trideoxy-6-(diethoxyphosphinyl)-3-O-[(phenylmethoxy)methyl]-β-D-erythro-hexofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[3-O-Benzoyl-2,5,6-trideoxy-6-(diethoxyphosphinyl)-α-L-threo-hexofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

(2S,3S,5R)-5-(3,4-Dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)tetrahydro-3-hydroxy-2-furanpropanenitrile

Methyl (2S,3S,5R)-5-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)tetrahydro-3-hydroxy-2-furanpropanoate