Thymidine, 5'-O-(triphenylmethyl)-, 3'-(4-chlorophenyl cyclohexylphosphoramidate)

Pyridinium, 3-(aminocarbonyl)-1-[5-O-[hydroxy(phosphonomethyl)phosphinyl]-β-D-ribofuranosyl]-, inner salt, P'→5'-ester with 1-β-D-ribofuranosyl-1H-imidazo[4,5-c]pyridin-4-amine

Pyridinium, 3-(aminocarbonyl)-1-[5-O-[hydroxy(phosphonomethyl)phosphinyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-, inner salt, P'→5'-ester with 1-[2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-1H-imidazo[4,5-c]pyridin-4-amine

Adenosine, 2',3'-O-(1-methylethylidene)-, 5'-[hydrogen (phosphonomethyl)phosphonate], P'→5'-ester with 3-(aminocarbonyl)-1-[2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]pyridinium, inner salt

1-[2,3-O-(1-Methylethylidene)-5-O-[(4-methylphenyl)sulfonyl]-β-D-ribofuranosyl]-1H-imidazo[4,5-c]pyridin-4-amine

1-[2,3-O-(1-Methylethylidene)-5-O-(methylsulfonyl)-β-D-ribofuranosyl]-1H-imidazo[4,5-c]pyridin-4-amine

4H-Imidazo[4,5-c]pyridin-4-imine, 1,5-dihydro-1-[5-O-[hydroxy(phosphonomethyl)phosphinyl]-β-D-ribofuranosyl]-5-β-D-ribofuranosyl-, intramol. ester

Adenosine, 1-β-D-ribofuranosyl-, 5'-[hydrogen (phosphonomethyl)phosphonate], intramol. P',5''-ester

Adenosine, 5'→P'-ester with selenodiphosphoric acid ((HO)2P(O)OP(Se)(OH)2)

Adenosine, 5'→P''-ester with selenotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SeH))

Guanosine, N-benzoyl-, 2',3'-diacetate, 5'→P''-ester with thiotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SH))

Cytidine, N-acetyl-, 2',3'-diacetate, 5'→P''-ester with thiotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SH))

Adenosine, 2',3'-diacetate, 5'→P''-ester with thiotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SH))

Uridine, 2',3'-diacetate, 5'→P''-ester with thiotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SH))

Guanosine, 2'-deoxy-N-(2-methyl-1-oxopropyl)-, 3'-acetate, 5'→P''-ester with thiotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SH))

Cytidine, N-benzoyl-2'-deoxy-, 3'-acetate, 5'→P''-ester with thiotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SH))

Adenosine, N-benzoyl-2'-deoxy-, 3'-acetate, 5'→P''-ester with thiotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SH))

Thymidine, 3'-acetate, 5'→P''-ester with thiotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SH))

Adenosine, 5'-O-(2-selenido-1,3,2-oxathiaphospholan-2-yl)-, 2',3'-diacetate

Cytidine, N-acetyl-5'-O-(2-sulfido-1,3,2-oxathiaphospholan-2-yl)-, 2',3'-diacetate