2(1H)-Pyrimidinone, 4-amino-1-(3,5,6-trideoxy-6,6-difluoro-6-phosphono-β-D-erythro-hexofuranosyl)-

5′-Cytidylic acid, 3′-deoxy-2′-O-methyl-, bis[2-[(trifluoroacetyl)thio]ethyl] ester

5′-Cytidylic acid, 5-bromo-2′-O-methyl-, bis[2-[(trifluoroacetyl)thio]ethyl] ester

1-[5,6-Dideoxy-6-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-2-O-methyl-β-D-ribo-hexofuranosyl]dihydro-2,4(1H,3H)-pyrimidinedione

2,4(1H,3H)-Pyrimidinedione, 1-(5,6-dideoxy-2-O-methyl-6-phosphono-β-D-ribo-hexofuranosyl)-5,6-dihydro-

7-[5-O-[Hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamine

7-[5-O-[Hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-2-O-methyl-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamine

5′-Cytidylic acid, 2′-O-methyl-, bis[2-[(trifluoroacetyl)thio]ethyl] ester

Adenosine, 2-amino-N-cyclopropyl-2′-O-methyl-

7-(2-O-Methyl-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamine

1-(3-Azido-3-deoxy-β-L-xylofuranosyl)-5-fluoro-2,4(1H,3H)-pyrimidinedione

Guanosine, 2′,3′-O-(1-methylethylidene)-8-(1-methylhydrazino)-

Inosine, 8-[(phenylmethyl)amino]-6-thio-

Inosine, 8-(1-pyrrolidinyl)-

6-[(6,9-Dihydro-6-oxo-9-β-D-ribofuranosyl-1H-purin-8-yl)thio]-1,2,4-triazine-3,5(2H,4H)-dione

4H-Pyrrolo[2,3-d]pyrimidin-4-one, 2-amino-7-[5-O-[bis[2-[(trifluoroacetyl)thio]ethoxy]phosphinyl]-3-deoxy-β-D-erythro-pentofuranosyl]-5-bromo-1,7-dihydro-

4-Chloro-5-ethyl-7-(2-O-methyl-5-O-phosphono-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidin-2-amine

4-Chloro-5-ethyl-7-(5-O-phosphono-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidin-2-amine

2-Amino-9-[5,6-dideoxy-6-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-2-O-methyl-β-D-ribo-hexofuranosyl]-1,9-dihydro-6H-purin-6-one

4-Chloro-5-ethyl-6-iodo-7-(2-O-methyl-β-D-ribofuranosyl)-7H-pyrrolo[2,3-d]pyrimidin-2-amine