4′-C-[[Bis(1-methylethoxy)phosphinyl]methoxy]-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5′-iodothymidine

4′-C-[[Bis(1-methylethoxy)phosphinyl]methoxy]-5′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-iodothymidine

4′-C-[[Bis(1-methylethoxy)phosphinyl]methoxy]-5′-deoxy-5′-iodothymidine

Adenosine, 5′-de(phosphinicooxy)thymidylyloxymethylenephosphinico-(4′→3′)-2′-deoxy-

Thymidylylmethyleneoxy-(3′→4′)-5′-deoxythymidine

Adenosine, 5′-de(phosphinicooxy)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]thymidylyloxymethylene(methoxyphosphinylidene)-(4′→3′)-N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-P-methylthymidylylmethyleneoxy-(3′→4′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]thymidine

5′-Deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-4′-C-[(hydroxymethoxyphosphinyl)methoxy]thymidine

5′-Deoxy-4′-C-[(dimethoxyphosphinyl)methoxy]-3′-O-[(1,1-dimethylethyl)dimethylsilyl]thymidine

4′-C-[[Bis(1-methylethoxy)phosphinyl]methoxy]-5′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]thymidine

4′-C-[[Bis(1-methylethoxy)phosphinyl]methoxy]-5′-deoxythymidine

Uridine, 2′-deoxyuridylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-O-phosphonouridylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-deoxy-

Uridine, 2′-deoxyuridylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-deoxy-

N-[1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-1,2-dihydro-6,7-dimethyl-2-oxo-4-pteridinyl]benzamide

N-[1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-1,2-dihydro-6,7-dimethyl-2-oxo-4-pteridinyl]benzamide

4-Amino-1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-6,7-dimethyl-2(1H)-pteridinone

Carbamic acid, [1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-1,2-dihydro-6,7-dimethyl-2-oxo-4-pteridinyl]-, 2-(4-nitrophenyl)ethyl ester

Carbamic acid, [1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-1,2-dihydro-6,7-dimethyl-2-oxo-4-pteridinyl]-, 2-(4-nitrophenyl)ethyl ester

Carbamic acid, [1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2-dihydro-6,7-dimethyl-2-oxo-4-pteridinyl]-, 2-(4-nitrophenyl)ethyl ester

4-Amino-1-(2-deoxy-β-D-erythro-pentofuranosyl)-6,7-dimethyl-2(1H)-pteridinone