C-[1-[5-[[[6-[[(9H-Fluoren-9-ylmethoxy)carbonyl]amino]-1-oxohexyl]amino]methyl]-2-nitrophenyl]ethyl] N-[3-[1-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]-2-propen-1-yl]carbamate

4-Amino-1-[5-O-[hydroxy[(9Z)-9-octadecen-1-yloxy]phosphinyl]-β-D-arabinofuranosyl]-2(1H)-pyrimidinethione

4-Amino-1-[5-O-[(docosyloxy)hydroxyphosphinyl]-β-D-arabinofuranosyl]-2(1H)-pyrimidinethione

4-Amino-1-[5-O-[hydroxy(octadecyloxy)phosphinyl]-β-D-arabinofuranosyl]-2(1H)-pyrimidinethione

4-Amino-1-[5-O-[hydroxy(tetradecyloxy)phosphinyl]-β-D-arabinofuranosyl]-2(1H)-pyrimidinethione

4-Amino-1-[5-O-[hydroxy(octyloxy)phosphinyl]-β-D-arabinofuranosyl]-2(1H)-pyrimidinethione

Adenosine, N-(1R,2R,4S,5S,6S)-3-oxatricyclo[3.2.1.02,4]oct-6-yl-

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

N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-5-methyl-2′-O-4-penten-1-ylcytidine

Cytidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-5-methyl-2′-O-4-penten-1-yl-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-5-methyl-2′-O-4-penten-1-yl-, 3′-acetate

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-5-methyl-2′-O-4-penten-1-yl-, 3′-(4-hydrogen butanedioate)

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-5-methyl-2′-O-4-penten-1-yl-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-5-methyl-2′-O-4-penten-1-yluridine