Thymidine, 5′-O-(triphenylmethyl)-, 3′-[P-methyl-N,N-bis(1-methylethyl)phosphonamidate]

Thymidine, 5′-O-(triphenylmethyl)-, 3′-(P-methyl-N,N-diphenylphosphonamidate)

Cytidine, N-benzoyl-2′-deoxy-5′-O-[(4-methoxyphenyl)diphenylmethyl]-, 3′-(trimethylphosphonamidate)

Thymidine, 5′-O-(triphenylmethyl)-, 3′-(N,N-diethyl-P-methylphosphonamidate)

Guanosine, 5′-O-[1,1-bis(4-methoxyphenyl)ethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-

Thymidine, 5′-O-(triphenylmethyl)-, 3′-(N,P-dimethyl-N-phenylphosphonamidite)

Thymidine, 5′-O-(triphenylmethyl)-, 3′-(P-methyl-N,N-diphenylphosphonamidite)

Thymidine, 5′-O-(triphenylmethyl)-, 3′-(N,N-diethyl-P-methylphosphonamidite)

Thymidine, 5′-O-(triphenylmethyl)-, 3′-[P-methyl-N,N-bis(1-methylethyl)phosphonamidite]

Adenosine 5′-(trihydrogen diphosphate), 2′-(2-carboxyethyl hydrogen phosphate), P′→5′-ester with 3-(aminocarbonyl)-1-β-D-ribofuranosylpyridinium

3′-Thymidylic acid, thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-, 3′-[5-(9-acridinyl)pentyl] ester

Uridine, 2′-deoxy-5-fluoro-, 3′,5′-bis(hydrogen heptanedioate)

Uridine, 2′-deoxy-5-fluoro-, 3′,5′-bis(hydrogen octanedioate)

Guanosine, 5-bromo-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-5-bromo-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-5-bromo-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Adenosine, adenylyl-(3′→5′)-adenylyl-(3′→5′)-3′-O-methyl-

Thymidine, P,2′-dideoxy-P-methylcytidylyl-(3′→5′)-P,2′-dideoxy-P-methylcytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-

Ethyl 1-(2-deoxy-α-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinepropanoate

5-Amino-3-(5-O-phosphono-β-D-ribofuranosyl)imidazo[4,5-d][1,3]oxazin-7(3H)-one

Ethyl 1-(2-deoxy-α-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-α-methyl-2,4-dioxo-5-pyrimidinepropanoate

Ethyl 1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinepropanoate