3'-O-(2-Cyanoethyl)-5-[7-(cyanomethyl)-19-(3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-6-yl)-5,19-dioxo-6,9,12,15-tetraoxa-4,18-diazanonadec-1-yn-1-yl]-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

5-[17-Amino-7-(cyanomethyl)-5-oxo-6,9,12,15-tetraoxa-4-azaheptadec-1-yn-1-yl]-3'-O-(2-cyanoethyl)-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

3'-Azido-3'-deoxy-2',5'-di-O-methyladenosine

3'-Azido-3'-deoxy-5'-O-methyladenosine

3'-Azido-3'-deoxy-2'-O-methyladenosine

3'-[[(2S)-2-Amino-3-(4-methoxyphenyl)-1-oxopropyl]amino]-3'-deoxy-2',5'-di-O-methyladenosine

3'-Amino-3'-deoxy-2',5'-di-O-methyladenosine

3'-[[(2S)-2-Amino-3-(4-methoxyphenyl)-1-oxopropyl]amino]-3'-deoxy-5'-O-methyladenosine

3'-[[(2S)-2-Amino-3-(4-methoxyphenyl)-1-oxopropyl]amino]-3'-deoxy-2'-O-methyladenosine

3'-Deoxy-3'-[[(2S)-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-3-(4-methoxyphenyl)-1-oxopropyl]amino]-2',5'-di-O-methyladenosine

2'-Deoxyuridine 4-(O-acetyloxime)

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyuridine 4-(O-acetyloxime)

1-(2-Deoxy-β-D-erythro-pentofuranosyl)-7-fluoro-1H-benzimidazole

2'-Azido-5-cyano-2'-deoxyuridine

3'-[[(2S,3S)-2-Amino-3-methyl-1-oxopentyl]amino]-3'-deoxy-N,N-dimethyladenosine

1-(2-Deoxy-β-D-erythro-pentofuranosyl)-4-fluoro-1H-benzimidazole

1H-Benzimidazole, 5,6-dibromo-1-[3,5-O-[(R)-mercaptophosphinylidene]-β-D-ribofuranosyl]-

1H-Benzimidazole, 5,6-dichloro-1-[3,5-O-[(R)-mercaptophosphinylidene]-β-D-ribofuranosyl]-

1H-Benzimidazole, 5,6-dibromo-1-[3,5-O-[(S)-mercaptophosphinylidene]-β-D-ribofuranosyl]-

5,6-Dichloro-1-(3,5-O-phosphinico-β-D-ribofuranosyl)-1H-benzimidazole