4H-Pyrrolo[2,3-d]pyrimidin-4-one, 1,7-dihydro-2-(methylthio)-7-α-D-ribofuranosyl-

2′-Adenylic acid, N-benzoyl-, 2-cyanoethyl 2,2,2-tribromoethyl ester, 3′-benzoate

6,7-Dichloro-1,4-dihydro-1-β-D-ribofuranosyl-2,3-quinoxalinedione

1,4-Dihydro-6,7-dimethyl-1-β-D-ribofuranosyl-2,3-quinoxalinedione

1,4-Dihydro-1-β-D-ribofuranosyl-2,3-quinoxalinedione

6,7-Dichloro-1,4-dihydro-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-2,3-quinoxalinedione

1,4-Dihydro-6,7-dimethyl-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-2,3-quinoxalinedione

1,4-Dihydro-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-2,3-quinoxalinedione

6,7-Dichloro-1-β-D-ribofuranosyl-2(1H)-quinoxalinone

6,7-Dimethyl-1-β-D-ribofuranosyl-2(1H)-quinoxalinone

6,7-Dichloro-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-2(1H)-quinoxalinone

6,7-Dimethyl-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-2(1H)-quinoxalinone

Cytidine, P-(2-chlorophenyl)-2′-deoxy-5′-O-(9-phenyl-9H-xanthen-9-yl)adenylyl-(3′→5′)-2′-deoxy-

Cytidine, N-acetyl-2′,3′,5′-tris-O-(trimethylsilyl)-

Guanosine, N-(trimethylsilyl)-3′,5′,6-tris-O-(trimethylsilyl)-, 2′-acetate

Guanosine, N-(trimethylsilyl)-2′,5′,6-tris-O-(trimethylsilyl)-, 3′-acetate

Adenosine, N-(trimethylsilyl)-3′,5′-bis-O-(trimethylsilyl)-, 2′-acetate

Adenosine, N-(trimethylsilyl)-2′,5′-bis-O-(trimethylsilyl)-, 3′-acetate

2′-Deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanosine

2′-Deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanosine