3H-Indolium, 2-[5-[1-[17-[3-[[[[3-[[[6-[[3-[2-amino-7-[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]-2-propyn-1-yl]amino]-6-oxohexyl]amino]carbonyl]phenyl]methyl]dithio]methyl]phenyl]-6,17-dioxo-10..

3H-Indolium, 2-[5-[1-[17-[3-[[[[3-[[[6-[[3-[4-amino-7-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-5-yl]-2-propyn-1-yl]amino]-6-oxohexyl]amino]carbonyl]phenyl]methyl]dithio]methyl]phenyl]-6,17-dioxo-10,13-dioxa-7,16-dia..

3-(2-Deoxy-β-D-erythro-pentofuranosyl)-3,5-dihydro-2-methyl-5-(3-pyridinylmethylene)-4H-imidazol-4-one

3-(2-Deoxy-β-D-erythro-pentofuranosyl)-3,5-dihydro-2-methyl-5-(phenylmethylene)-4H-imidazol-4-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-3,5-dihydro-2-methyl-5-(3-pyridinylmethylene)-4H-imidazol-4-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-3,5-dihydro-2-methyl-5-(3-pyridinylmethylene)-4H-imidazol-4-one

3-[2-Deoxy-3,5-bis-O-(4-methylphenyl)-β-D-erythro-pentofuranosyl]-3,5-dihydro-2-methyl-5-(3-pyridinylmethylene)-4H-imidazol-4-one

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-3,5-dihydro-2-methyl-5-(phenylmethylene)-4H-imidazol-4-one