1-(3-Amino-2,3-dideoxy-β-D-erythro-pentofuranosyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione

1-(3-Azido-2,3-dideoxy-β-D-erythro-pentofuranosyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione

1-(3-Azido-2,3-dideoxy-α-D-erythro-pentofuranosyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione

1-[3-Azido-2,3-dideoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-α-D-erythro-pentofuranosyl]thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione

1-[(2S,5S)-Tetrahydro-5-(hydroxymethyl)-2-furanyl]thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione

[(2S,5S)-5-(3,4-Dihydro-2,4-dioxothieno[2,3-d]pyrimidin-1(2H)-yl)tetrahydro-2-furanyl]methyl [1,1′-biphenyl]-4-carboxylate

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

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

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

2′-Deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyguanosine

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(1-oxo-4-pentenyl)-, 3′-(hydrogen phosphonate)

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(1-oxo-4-pentenyl)-, 3′-(hydrogen phosphonate)

Thymidine, 3′-de(phosphinicooxy)-5′-O-[tris[4-(1,1-dimethylethyl)phenyl]methyl]thymidylyl(2-thioxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Thymidine, 3′-de(phosphinicooxy)-5′-O-[tris[4-(1,1-dimethylethyl)phenyl]methyl]thymidylyl(2-thioxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-

Thymidine, 3′-de(phosphinicooxy)-3-[[(4-methoxyphenyl)methoxy]methyl]-5′-O-[tris[4-(1,1-dimethylethyl)phenyl]methyl]thymidylyl(2-thioxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-3-[[(4-methoxyphenyl)methoxy]methyl]-

Thymidine, 3′-de(phosphinicooxy)-3-[[(4-methoxyphenyl)methoxy]methyl]-5′-O-[tris[4-(1,1-dimethylethyl)phenyl]methyl]thymidylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-3-[[(4-methoxyphenyl)methoxy]methyl]-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylcarbonylimino-(3′→5′)-5′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylcarbonylimino-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-carboxy-3′-deoxy-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethyleneimino-(3′→5′)-5′-deoxy-5′-oxo-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]