2,4(1H,3H)-Pyrimidinedione, 5-methyl-1-(octahydro-3-oxofuro[2,3-f]-1,4-oxazepin-7-yl)-, [5aR-(5aα,7β,8aβ)]-

Thymidine, 5′-azido-3′-O-(carboxymethyl)-5′-deoxy-

Thymidine, 3′-O-carbonyl-3′-O-dephosphinico-5′-O-(triphenylmethyl)thymidylyl-(3′→5′)-5′-amino-5′-deoxy-

Thymidine, 3′-O-dephosphinico-3′-O-(1-oxo-2,1-ethanediyl)thymidylyl-3′→5′)-5′-amino-5′-deoxy-

Thymidine, 3′-O-dephosphinico-3′-O-(1-oxo-2,1-ethanediyl)-5′-O-(triphenylmethyl)thymidylyl-(3′→5′)-5′-amino-5′-deoxy-

5′-Thymidylic acid, diphenyl ester

3′-Thymidylic acid, diphenyl ester

Uridine, 2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, cyclic 3′,5′-(phenyl phosphate)

Adenosine, N-(4-methoxybenzoyl)-, cyclic 3′,5′-(hydrogen phosphate)

2-β-D-Ribofuranosyl-3(2H)-pyridazinethione

2-(2,3,5-Tri-O-benzoyl-β-D-ribofuranosyl)-3(2H)-pyridazinethione

3′-Adenylic acid, 2′-O-methyl-

1,9-Dihydro-9-[5-O-(hydroxymethoxyphosphinyl)-β-D-arabinofuranosyl]-6H-purin-6-one

Adenosine, 2′-O-[(3-methyl-1-oxido-2-pyridinyl)methyl]-

Uridine, 2′-O-[(3-methyl-1-oxido-2-pyridinyl)methyl]-, 3′,5′-dibenzoate

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)thymidylyl-(3′→5′)-, 3′-(N,N′-diphenylphosphorodiamidate)

1,9-Dihydro-9-(5-O-phosphono-β-D-arabinofuranosyl)-6H-purin-6-one

Cytidine, 3-[2-[[4-(aminomethyl)phenyl]methylamino]ethyl]-

5′-Uridylic acid, 2′,3′-O-[[4-[[2-(2-amino-1,6-dihydro-6-oxo-7H-purin-7-yl)ethyl]methylamino]phenyl]methylene]-

Uridine, 2′,3′-O-[[4-[[2-(2-amino-1,6-dihydro-6-oxo-7H-purin-7-yl)ethyl]methylamino]phenyl]methylene]-