Cytidine, (S)-P-deoxy-5′-O-[(4-methoxyphenyl)diphenylmethyl]-P-methylthymidylyl-(3′→5′)-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Cytidine, (R)-P-deoxy-5′-O-[(4-methoxyphenyl)diphenylmethyl]-P-methylthymidylyl-(3′→5′)-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Thymidine, (S)-P,2′-dideoxy-5′-O-[(4-methoxyphenyl)diphenylmethyl]-P-methylcytidylyl-(3′→5′)-, 3′-acetate

Thymidine, (R)-P,2′-dideoxy-5′-O-[(4-methoxyphenyl)diphenylmethyl]-P-methylcytidylyl-(3′→5′)-, 3′-acetate

Adenosine, 2′-deoxy-5′-O-[(4-methoxyphenyl)diphenylmethyl]-, 3′-[(S)-4-nitrophenyl methylphosphonate]

Adenosine, 2′-deoxy-5′-O-[(4-methoxyphenyl)diphenylmethyl]-, 3′-[(R)-4-nitrophenyl methylphosphonate]

Cytidine, 2′-deoxy-5′-O-[(4-methoxyphenyl)diphenylmethyl]-, 3′-[(S)-4-nitrophenyl methylphosphonate]

Cytidine, 2′-deoxy-5′-O-[(4-methoxyphenyl)diphenylmethyl]-, 3′-[(R)-4-nitrophenyl methylphosphonate]

4-(2-Deoxy-β-D-erythro-pentofuranosyl)-7-methyl-2,4-diazabicyclo[4.2.0]octa-1,5-dien-3-one

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-dephosphinicothymidylylmethylene-1H-1,2,3-triazole-4,1-diyl-(3′→5′)-5′-deoxy-, 3′-[2-cyanoethyl [P(R)]-N,N-bis(1-methylethyl)phosphoramidite]

Thymidine, 5′-[4-[[(2S,6R)-2-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-6-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-4-morpholinyl]methyl]-1H-1,2,3-triazol-1-yl]-5′-deoxy-, 3′-[2-cyanoethyl [P(R)]-N,N-bis(1-methylethyl)phosphoramidite]

5′-[4-[[(2S,6R)-2-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-6-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-4-morpholinyl]methyl]-1H-1,2,3-triazol-1-yl]-5′-deoxythymidine

5′-[4-[[(2S,6R)-2-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-6-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-4-morpholinyl]methyl]-1H-1,2,3-triazol-1-yl]-5′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]thymidine

Adenosine 5′-(pentahydrogen tetraphosphate), 2′,3′-dideoxy-, P′′′→5′-ester with adenosine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3′-O-dephosphinicothymidylylmethylene-1H-1,2,3-triazole-4,1-diyl-(3′→5′)-5′-deoxythymidine

Adenosine 5'-(pentahydrogen tetraphosphate), 2',3'-dideoxy-, P'''→5'-ester with 2',3'-dideoxyadenosine