N-[3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-5,8-dihydro-8-oxo-3H-imidazo[4,5-g]quinazolin-6-yl]-2-methylpropanamide

N-[3-(2-Deoxy-β-D-erythro-pentofuranosyl)-5,8-dihydro-8-oxo-3H-imidazo[4,5-g]quinazolin-6-yl]-2-methylpropanamide

Propanamide, N-[3-[2-deoxy-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-erythro-pentofuranosyl]-5,8-dihydro-8-oxo-3H-imidazo[4,5-g]quinazolin-6-yl]-2-methyl-

Propanamide, N-[5,8-dihydro-8-oxo-3-[2-O-(phenoxythioxomethyl)-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-ribofuranosyl]-3H-imidazo[4,5-g]quinazolin-6-yl]-2-methyl-

Propanamide, N-[5,8-dihydro-8-oxo-3-[3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-ribofuranosyl]-3H-imidazo[4,5-g]quinazolin-6-yl]-2-methyl-

N-(5,8-Dihydro-8-oxo-3-β-D-ribofuranosyl-3H-imidazo[4,5-g]quinazolin-6-yl)-2-methylpropanamide

N-[7,8-Dihydro-8-oxo-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-imidazo[4,5-g]quinazolin-6-yl]-2-methylpropanamide

N-[5,8-Dihydro-8-oxo-3-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-3H-imidazo[4,5-g]quinazolin-6-yl]-2-methylpropanamide

Cytidine, N-benzoyl-2′-deoxy-3′-O-[(4-methoxyphenyl)diphenylmethyl]-

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[4-chlorophenyl (4-methoxyphenyl)phosphoramidate]

Guanosine 5′-(trihydrogen diphosphate), 2′,3′-dideoxy-

5′-Thymidylic acid, α-azido-

Adenosine, N-benzoyl-P-(2-chlorophenyl)-5′-O-[[2-[(4-chlorophenyl)sulfonyl]ethoxy]carbonyl]-2′-O-(9-phenyl-9H-xanthen-9-yl)adenylyl-(3′→5′)-N-benzoyl-3′-O-(3-hydroxy-1,1,3,3-tetrakis(1-methylethyl)disiloxanyl)-, 2′-acetate

Adenosine, N-benzoyl-3′-O-[3-hydroxy-1,1,3,3-tetrakis(1-methylethyl)disiloxanyl]-, 2′-acetate

3′-Adenylic acid, N-benzoyl-2′-O-(9-phenyl-9H-xanthen-9-yl)-, mono(2-chlorophenyl) ester, 5′-[2-[(4-chlorophenyl)sulfonyl]ethyl carbonate]

Adenosine, N-benzoyl-2′-O-(9-phenyl-9H-xanthen-9-yl)-, 5′-[2-[(4-chlorophenyl)sulfonyl]ethyl carbonate]

Adenosine, N-benzoyl-2′-O-(9-phenyl-9H-xanthen-9-yl)-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Adenosine 5′-(trihydrogen diphosphate), P′→6-ester with D-mannose

Cytidine, 5′-O-phosphonocytidylyl-(2′→5′)-cytidylyl-(2′→5′)-

Adenosine, N-methyl-5′-O-phosphonoadenylyl-(2′→5′)-N-methyladenylyl-(2′→5′)-N-methyl-