9-[(2R,5S)-Tetrahydro-5-[(methylthio)methyl]-2-furanyl]-9H-purin-6-amine

9H-Purin-2(3H)-one, 9-(2,3-O-isopropylidene-β-D-ribofuranosyl)-6-(methylthio)-

5-Amino-1-(5-O-phosphono-β-D-ribofuranosyl)-1H-imidazole-4-carbothioamide

6-Chloro-9-[3-deoxy-2-O-[(trifluoromethyl)sulfonyl]-5-O-(triphenylmethyl)-β-D-erythro-pentofuranosyl]-9H-purine

9-[2-Azido-2,3-dideoxy-5-O-(triphenylmethyl)-β-D-threo-pentofuranosyl]-6-chloro-9H-purine

6-Chloro-9-[3-deoxy-2-O-(1H-imidazol-1-ylsulfonyl)-5-O-(triphenylmethyl)-β-D-erythro-pentofuranosyl]-9H-purine

6-Chloro-9-[2,3-dideoxy-2-fluoro-5-O-(triphenylmethyl)-β-D-threo-pentofuranosyl]-9H-purine

6-Chloro-9-[3-deoxy-5-O-(triphenylmethyl)-β-D-erythro-pentofuranosyl]-9H-purine

Thymidine, 5′-(4-iodo-β-methyl-2-nitrobenzeneethanesulfonate)

Thymidine, 5′-(4-bromo-β-methyl-2-nitrobenzeneethanesulfonate)

Thymidine, 5′-(4-chloro-β-methyl-2-nitrobenzeneethanesulfonate)

Thymidine, 5′-[2-(4-iodo-2-nitrophenyl)propyl carbonate]

Thymidine, 5′-[2-(4-bromo-2-nitrophenyl)propyl carbonate]

Thymidine, 5′-[2-(4-chloro-2-nitrophenyl)propyl carbonate]

9H-Purine, 6,6′-azobis[9-[5-deoxy-5-(methylamino)-β-D-lyxofuranosyl]-

9,12-Epoxy-1H-diindolo[1,2,3-fg:3′,2′,1′-kl]pyrrolo[3,4-i][1,6]benzodiazocine-10-carbonitrile, 10-(acetyloxy)-2,3,9,10,11,12-hexahydro-9-methyl-1-oxo-, (9S,10S,12R)-

9,12-Epoxy-1H-diindolo[1,2,3-fg:3′,2′,1′-kl]pyrrolo[3,4-i][1,6]benzodiazocin-1-one, 10-(acetyloxy)-2,3,9,10,11,12-hexahydro-9-methyl-, (9S,10S,12R)-

9,12-Epoxy-1H-diindolo[1,2,3-fg:3′,2′,1′-kl]pyrrolo[3,4-i][1,6]benzodiazocin-1-one, 10-(acetyloxy)-2,3,9,10,11,12-hexahydro-9-(iodomethyl)-, (9R,10S,12R)-

5H-Indolo[2,3-a]pyrrolo[3,4-c]carbazol-5-one, 13-(3-O-acetyl-2-deoxy-5-Se-phenyl-5-seleno-β-D-erythro-pentofuranosyl)-6,7,12,13-tetrahydro-

5H-Indolo[2,3-a]pyrrolo[3,4-c]carbazol-5-one, 13-(2-deoxy-5-Se-phenyl-5-seleno-β-D-erythro-pentofuranosyl)-6,7,12,13-tetrahydro-