3-[[3-[[(3-Hydroxypropyl)amino]carbonyl]-5-[[[3-[[(triphenylmethyl)thio]oxy]propyl]amino]carbonyl]benzoyl]amino]propyl hydrogen 5′-thymidylate

1-[5-O-[Bis[2-[(2,2-dimethyl-1-oxopropyl)thio]ethoxy]phosphinyl]-2-C-methyl-β-L-ribofuranosyl]-2,4(1H,3H)-pyrimidinedione

4-Amino-1-[5-O-[bis[2-[(2,2-dimethyl-1-oxopropyl)thio]ethoxy]phosphinyl]-2-C-methyl-β-L-ribofuranosyl]-2(1H)-pyrimidinone

4-Amino-1-[5-O-[bis[2-[(2,2-dimethyl-1-oxopropyl)thio]ethoxy]phosphinyl]-2-C-methyl-2,3-O-(1-methylethylidene)-β-L-ribofuranosyl]-2(1H)-pyrimidinone

Bis[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl] 2′-C-methyl-5′-cytidylate

4-Amino-1-[2-C-methyl-2,3-O-(1-methylethylidene)-β-L-ribofuranosyl]-2(1H)-pyrimidinone

1-[5-O-[Bis[2-[(2,2-dimethyl-1-oxopropyl)thio]ethoxy]phosphinyl]-2-C-methyl-2,3-O-(1-methylethylidene)-β-L-ribofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[2-C-Methyl-2,3-O-(1-methylethylidene)-β-L-ribofuranosyl]-2,4(1H,3H)-pyrimidinedione

Bis[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl] 2′-C-methyl-2′,3′-O-(1-methylethylidene)-5′-cytidylate

Bis[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl] 2′-C-methyl-5′-uridylate

Bis[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl] 2′-C-methyl-2′,3′-O-(1-methylethylidene)-5′-uridylate

1-(2-C-Methyl-β-L-ribofuranosyl)-2,4(1H,3H)-pyrimidinedione

4-Amino-1-(2-C-methyl-β-L-ribofuranosyl)-2(1H)-pyrimidinone

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[2-[[2-[4-(1,1-dimethylethyl)phenoxy]acetyl]amino]-3-methyl-3H-imidazo[4,5-f]quinolin-5-yl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

1-(2,3,5-Tri-O-benzoyl-β-D-ribofuranosyl)-1H-imidazo[4,5-b]phenazine

5-Methyl-1-(2-C-methyl-β-L-ribofuranosyl)-2,4(1H,3H)-pyrimidinedione

8-[4-(Phenylmethyl)-1-piperazinyl]inosine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[2-[[2-[4-(1,1-dimethylethyl)phenoxy]acetyl]amino]-3-methyl-3H-imidazo[4,5-f]quinolin-5-yl]guanosine

1-(2-Deoxy-2-fluoro-β-D-arabinofuranosyl)-5-ethyl-4-(methylthio)-2(1H)-pyrimidinone

1-(3,5-Di-O-benzoyl-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-5-ethyl-3,4-dihydro-4-thioxo-2(1H)-pyrimidinone