Propanamide, N-[7-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino]methoxyphosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-4,7-dihydro-4-oxo-1H-pyrrolo[2,3-d]pyrimidin-2-yl]-2-methyl-

Propanamide, N-[7-[2-deoxy-3,5-bis-O-(2-methyl-1-oxopropyl)-β-D-erythro-pentofuranosyl]-4,7-dihydro-4-oxo-1H-pyrrolo[2,3-d]pyrimidin-2-yl]-2-methyl-

Adenosine, 2′-O-(9-hydroxy-2,5,11-trimethyl-6H-pyrido[4,3-b]carbazolium-10-yl)-3′-O-methyl-

9H-Purin-6-amine, 9-[2-O-(2,5,11-trimethyl-9-oxo-9H-pyrido[4,3-b]carbazolium-10-yl)-β-D-xylofuranosyl]-

Adenosine, 3′-O-methyl-2′-O-(2,5,11-trimethyl-9-oxo-9H-pyrido[4,3-b]carbazolium-10-yl)-

Cytidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-[methyl (4,5-dichloro-1H-imidazol-1-yl)phosphonite]

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-deoxo-2′-deoxy-P(O)-methyladenylyl-(3′→3′)-N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-deoxo-2′-deoxy-P(O)-methyl-N-(2-methyl-1-oxopropyl)guanylyl-(3′→3′)-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-

Thymidine, 5′-O-ethyl-α,α,α-trifluoro-

Cytidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-deoxo-2′-deoxy-P(O)-methylcytidylyl-(3′→3′)-N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-

Thymidine, 3′-O-ethyl-α,α,α-trifluoro-

9-(5-O-Acetyl-β-D-arabinofuranosyl)-N-[[(2,2-dimethylpropoxy)methoxy]methyl]-9H-purin-6-amine

Mercury, methyl(5-methyluridinato-N3)-

Guanosine, 7-methyl-, 5′-(hydrogen 1H-imidazol-1-ylphosphonate)

N-[[(2,2-Dimethylpropoxy)methoxy]methyl]-9-(2,3,5-tri-O-acetyl-β-D-arabinofuranosyl)-9H-purin-6-amine

Adenosine, cyclic 2′,3′-phosphoramidate

Adenosine, 3′-(hydrogen phosphoramidate)

Thymidine, adenylyl-(2′-3′→5′)-

1,2-Dihydro-2-oxo-1-β-D-ribofuranosyl-4-pyridinecarbonitrile

1,2-Dihydro-2-oxo-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-4-pyridinecarbonitrile