3H-Indolium, 2-[5-[1-[24-[2-amino-7-[3-O-(azidomethyl)-2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-4,7-dihydro-4-oxo-3H-pyrrolo[2,3-d]pyrimidin-5-yl]-6,20-dioxo-13-oxa-10,11-dithia-7,19,21-triazatetracos-23-yn-1-yl]-1,3-dihydro-3,3-dimethyl-5-sul..

1H,5H,11H,15H-Xantheno[2,3,4-ij:5,6,7-i‘j′]diquinolizin-18-ium, 9-[5-[19-[4-amino-7-[3-O-(azidomethyl)-2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-5-yl]-1,15-dioxo-8-oxa-5,6-dithia-2,14,16-triazanonadec-18-yn-1-yl]-2-ca..

Xanthylium, 9-[5-[19-[1-[3-O-(azidomethyl)-2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]-1,15-dioxo-8-oxa-5,6-dithia-2,14,16-triazanonadec-18-yn-1-yl]-2-carboxyphenyl]-3,6-bis(ethylamino)-2,7-dimethyl-, i..

5′-Cytidylic acid, 2′-deoxy-, anhydride with P,P′-[(R)-chloromethylene]bis[phosphonic acid] (1:1)

N-Benzoyl-2′-deoxy-3′-O-[(methyldithio)methyl]-5-[3-[(2,2,2-trifluoroacetyl)amino]-1-propyn-1-yl]cytidine 5′-(tetrahydrogen triphosphate)

Xanthylium, 3,6-diamino-9-[5-[31-[4-amino-1-[2-deoxy-3-O-[(ethyldithio)methyl]-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-1,2-dihydro-2-oxo-5-pyrimidinyl]-16,16-dimethyl-1,12,27-trioxo-5,8,13,20-tetraoxa-17,18-dithia-2,11,26,28-tetraazahentriacont-30-yn..

Xanthylium, 3,6-diamino-9-[5-[31-[4-amino-1-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-3-O-[(methyldithio)methyl]-β-D-erythro-pentofuranosyl]-1,2-dihydro-2-oxo-5-pyrimidinyl]-16,16-dimethyl-1,12,27-trioxo-5,8,13,20-tetraoxa-17,18-dithia-2,11,26,28-tetraazahentriacont-30-y..

2-Amino-5-(3-amino-1-propyn-1-yl)-7-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-3-O-[[[(2,4,6-trimethoxyphenyl)methyl]thio]methyl]-β-D-erythro-pentofuranosyl]-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

5-(3-Amino-1-propyn-1-yl)-2′-deoxy-3′-O-[[[(2,4,6-trimethoxyphenyl)methyl]thio]methyl]uridine 5′-(tetrahydrogen triphosphate)