9-[4-[[[2-[4-[2-[4-[[[2-[[[[3-[4-Amino-7-[2-deoxy-3-O-[[(1,1-dimethylethyl)dithio]methyl]-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-5-yl]-2-propyn-1-yl]oxy]methyl]dithio]-2-methylpropyl]amino]carbonyl]phenyl]diazenyl]-3-hydro..

N′-[5-[3-[[(2-Amino-1,1-dimethylethyl)dithio]methoxy]-1-propyn-1-yl]-7-[2-deoxy-3-O-[[(1,1-dimethylethyl)dithio]methyl]-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-N,N-dimethylmethanimidamide

N-[2-[[[[3-[7-[2-Deoxy-3-O-[[(1,1-dimethylethyl)dithio]methyl]-β-D-erythro-pentofuranosyl]-4-[[(dimethylamino)methylene]amino]-7H-pyrrolo[2,3-d]pyrimidin-5-yl]-2-propyn-1-yl]oxy]methyl]dithio]-2-methylpropyl]-2,2,2-trifluoroacetamide

N-[2-[[[[3-[7-[2-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-O-[[(1,1-dimethylethyl)dithio]methyl]-β-D-erythro-pentofuranosyl]-4-[[(dimethylamino)methylene]amino]-7H-pyrrolo[2,3-d]pyrimidin-5-yl]-2-propyn-1-yl]oxy]methyl]dithio]-2-methylpropyl]-2,2,2-trifluoroacetamide

N′-[7-[2-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-O-[[(1,1-dimethylethyl)dithio]methyl]-β-D-erythro-pentofuranosyl]-5-iodo-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-N,N-dimethylmethanimidamide

N′-[7-[2-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-O-[(methylthio)methyl]-β-D-erythro-pentofuranosyl]-5-iodo-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-N,N-dimethylmethanimidamide

5-[3-[[(2-Amino-1,1-dimethylethyl)dithio]methoxy]-1-propyn-1-yl]-2′-deoxy-3′-O-[[(1,1-dimethylethyl)dithio]methyl]cytidine 5′-(tetrahydrogen triphosphate)

2′-Deoxy-N-[(dimethylamino)methylene]-3′-O-[[(1,1-dimethylethyl)dithio]methyl]-5-[3-[[[1,1-dimethyl-2-[(2,2,2-trifluoroacetyl)amino]ethyl]dithio]methoxy]-1-propyn-1-yl]cytidine

2′-Deoxy-N-[(dimethylamino)methylene]-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-[[(1,1-dimethylethyl)dithio]methyl]-5-[3-[[[1,1-dimethyl-2-[(2,2,2-trifluoroacetyl)amino]ethyl]dithio]methoxy]-1-propyn-1-yl]cytidine

2′-Deoxy-N-[(dimethylamino)methylene]-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-iodo-3′-O-[(methylthio)methyl]cytidine

5-[3-[[(2-Amino-1,1-dimethylethyl)dithio]methoxy]-1-propyn-1-yl]-2′-deoxy-3′-O-[[(1,1-dimethylethyl)dithio]methyl]uridine 5′-(tetrahydrogen triphosphate)

2′-Deoxy-3′-O-[[(1,1-dimethylethyl)dithio]methyl]-5-[3-[[[1,1-dimethyl-2-[(2,2,2-trifluoroacetyl)amino]ethyl]dithio]methoxy]-1-propyn-1-yl]uridine

2′-Deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-[[(1,1-dimethylethyl)dithio]methyl]-5-[3-[[[1,1-dimethyl-2-[(2,2,2-trifluoroacetyl)amino]ethyl]dithio]methoxy]-1-propyn-1-yl]uridine

2′-Deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-iodo-3′-O-[(methylthio)methyl]uridine

N-Benzoyl-2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-[[(1,1-dimethylethyl)dithio]methyl]cytidine

N-Benzoyl-2′-deoxy-3′-O-[[(1,1-dimethylethyl)dithio]methyl]adenosine

N-Benzoyl-2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-[[(1,1-dimethylethyl)dithio]methyl]adenosine

2′-Deoxy-3′-O-[[(1,1-dimethylethyl)dithio]methyl]-N-(2-methyl-1-oxopropyl)guanosine

2′-Deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-[[(1,1-dimethylethyl)dithio]methyl]-N-(2-methyl-1-oxopropyl)guanosine

3′-O-[[(1,1-Dimethylethyl)dithio]methyl]thymidine