(5′S)-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-P-ethylthymidylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-C-(diethoxyphosphinyl)thymidine

(5′R)-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-P-ethylthymidylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-C-(diethoxyphosphinyl)thymidine

Thymidine, 3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-C-(diethoxyphosphinyl)-, 5′-[ethyl N,N-bis(1-methylethyl)phosphoramidite], (5′S)-

Thymidine, 3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-C-(diethoxyphosphinyl)-, 5′-[ethyl N,N-bis(1-methylethyl)phosphoramidite], (5′R)-

Thymidine, 3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-C-(diethoxyphosphinyl)-, 5′-acetate, (5′S)-

Thymidine, 3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-C-(diethoxyphosphinyl)-, 5′-acetate, (5′R)-

(5′S)-3′-O-[(1,1-Dimethylethyl)dimethylsilyl]-5′-C-(diethoxyphosphinyl)thymidine

(5′R)-3′-O-[(1,1-Dimethylethyl)dimethylsilyl]-5′-C-(diethoxyphosphinyl)thymidine

1-[2-Hydroxy-1-(hydroxymethyl)ethyl]inosine

1-(5-Hydroxypentyl)inosine

1-(3-Hydroxypropyl)inosine

1-Butylinosine

1-[2-Hydroxy-1-(hydroxymethyl)ethyl]-2′,3′-O-(1-methylethylidene)inosine

1-Butyl-2′,3′-O-(1-methylethylidene)inosine

1-(2,4-Dinitrophenyl)inosine

1-(2,4-Dinitrophenyl)-2′,3′-O-(1-methylethylidene)inosine

1,1-Dimethylethyl 5-[(1E)-2-fluoroethenyl]-3,6-dihydro-2,6-dioxo-3-(2,3,5-tri-O-acetyl-β-D-arabinofuranosyl)-1(2H)-pyrimidinecarboxylate

1-β-D-Arabinofuranosyl-5-[(1E)-2-fluoroethenyl]-2,4(1H,3H)-pyrimidinedione

5-[(1E)-2-Fluoroethenyl]-1-(2,3,5-tri-O-acetyl-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

1,1-Dimethylethyl 3,6-dihydro-2,6-dioxo-3-(2,3,5-tri-O-acetyl-β-D-arabinofuranosyl)-5-[(1E)-2-(tributylstannyl)ethenyl]-1(2H)-pyrimidinecarboxylate