Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-C-(2,2-dimethyl-1-oxopropyl)-3′-O-(triethylsilyl)-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-C-(hydroxyphenylmethyl)-3′-O-(triethylsilyl)-

1-[3-C-Benzoyl-5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-threo-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-3-C-(2,2-dimethyl-1-oxopropyl)-β-D-threo-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-(3-C-Benzoyl-2-deoxy-β-D-threo-pentofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2-Deoxy-3-C-(2,2-dimethyl-1-oxopropyl)-β-D-threo-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

Thymidine, 3′-C-cyano-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-(trimethylsilyl)-

Thymidine, 3′-C-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-(triethylsilyl)-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-C-(1-hydroxy-2,2-dimethylpropyl)-3′-O-(triethylsilyl)-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-C-formyl-3′-O-(triethylsilyl)-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-C-(hydroxymethyl)-3′-O-(triethylsilyl)-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-(triethylsilyl)-3′-C-[[(triethylsilyl)oxy]methyl]-

1-(3-C-Acetyl-2-deoxy-β-D-threo-pentofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[3-C-Cyano-2-deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-O-(trimethylsilyl)-β-D-threo-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[3-C-Acetyl-5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-threo-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

Thymidine, 3′-C-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-

Guanosine, 2′-deoxy-N-[2-[[4-[[[2-[[[2-[[[2-[[[2-(dimethylamino)ethyl]amino]carbonyl]-1-methyl-1H-imidazol-4-yl]amino]carbonyl]-1-methyl-1H-imidazol-4-yl]amino]carbonyl]-1-methyl-1H-imidazol-4-yl]amino]carbonyl]phenyl]amino]ethyl]-6-O-[2-(trimethylsilyl)ethyl]-

Guanosine, 2′-deoxy-N-[2-[[4-[[[2-[[[2-[[[2-[[[2-(dimethylamino)ethyl]amino]carbonyl]-1-methyl-1H-imidazol-4-yl]amino]carbonyl]-1-methyl-1H-imidazol-4-yl]amino]carbonyl]-1-methyl-1H-imidazol-4-yl]amino]carbonyl]phenyl]amino]ethyl]-