4-Amino-1-[5-O-[(R)-[(1-methyl-2-nitro-1H-imidazol-5-yl)methoxy](phenylamino)phosphinyl]-β-D-arabinofuranosyl]-2(1H)-pyrimidinone

4-Amino-1-[5-O-[[2-[(3-hydroxy-2,2-dimethyl-1-oxopropyl)thio]ethoxy](phenylamino)phosphinyl]-β-D-arabinofuranosyl]-2(1H)-pyrimidinone

4-[[Bis(4-methoxyphenyl)phenylmethyl]amino]-1-[5-O-[[(1-methyl-2-nitro-1H-imidazol-5-yl)methoxy](phenylamino)phosphinyl]-β-D-arabinofuranosyl]-2(1H)-pyrimidinone

4-[[Bis(4-methoxyphenyl)phenylmethyl]amino]-1-[5-O-[7,7-dimethyl-1-oxido-6-oxo-10,10,10-triphenyl-1-(phenylamino)-2,9-dioxa-5-thia-1-phosphadec-1-yl]-β-D-arabinofuranosyl]-2(1H)-pyrimidinone

2-Chloro-9-[2-deoxy-5-O-[7,7-dimethyl-1-oxido-6-oxo-10,10,10-triphenyl-1-[(phenylmethyl)amino]-2,9-dioxa-5-thia-1-phosphadec-1-yl]-2-fluoro-β-D-arabinofuranosyl]-9H-purin-6-amine

2-Chloro-9-[2-deoxy-2-fluoro-5-O-[7,7,12,12-tetramethyl-1-oxido-6,10-dioxo-1-[(phenylmethyl)amino]-2,11-dioxa-5-thia-9-aza-1-phosphatridec-1-yl]-β-D-arabinofuranosyl]-9H-purin-6-amine

4-[[Bis(4-methoxyphenyl)phenylmethyl]amino]-1-[5-O-(7,7-dimethyl-1-oxido-6-oxo-10,10,10-triphenyl-2,9-dioxa-5-thia-1-phosphadec-1-yl)-β-D-arabinofuranosyl]-2(1H)-pyrimidinone

2-Chloro-9-[2-deoxy-5-O-(7,7-dimethyl-1-oxido-6-oxo-10,10,10-triphenyl-2,9-dioxa-5-thia-1-phosphadec-1-yl)-2-fluoro-β-D-arabinofuranosyl]-9H-purin-6-amine

2-Chloro-9-[2-deoxy-2-fluoro-5-O-(7,7,12,12-tetramethyl-1-oxido-6,10-dioxo-2,11-dioxa-5-thia-9-aza-1-phosphatridec-1-yl)-β-D-arabinofuranosyl]-9H-purin-6-amine

4-[[Bis(4-methoxyphenyl)phenylmethyl]amino]-1-(2-deoxy-2-fluoro-β-D-arabinofuranosyl)-2(1H)-pyrimidinone

L-Alanine, N-[(R)-hydroxy[(5-nitro-2-thienyl)methoxy]phosphinyl]-, phenylmethyl ester, 5′-ester with 4-amino-1-β-D-arabinofuranosyl-2(1H)-pyrimidinone

L-Alanine, N-[(S)-hydroxy[(5-nitro-2-thienyl)methoxy]phosphinyl]-, phenylmethyl ester, 5′-ester with 4-amino-1-β-D-arabinofuranosyl-2(1H)-pyrimidinone

9-[5-O-[(S)-[2-(3-Hydroxy-2,2-dimethyl-1-thioxopropoxy)ethoxy][(phenylmethyl)amino]phosphinyl]-β-D-arabinofuranosyl]-6-methoxy-9H-purin-2-amine

6-Methoxy-9-[3,5-O-[[[(1S)-1-methyl-2-(1-oxopropoxy)ethyl]amino]phosphinylidene]-β-D-arabinofuranosyl]-9H-purin-2-amine

L-Alanine, N-phosphono-, 1-ethyl ester, cyclic (P→3′,5′)-ester with 9-β-D-arabinofuranosyl-6-methoxy-9H-purin-2-amine

L-Alanine, N-phosphono-, 1-ethyl ester, cyclic (P→3′,5′)-ester with 9-β-D-arabinofuranosyl-2-fluoro-9H-purin-6-amine

2-Fluoro-9-[3,5-O-[[[(1S)-1-methyl-2-(1-oxopropoxy)ethyl]amino]phosphinylidene]-β-D-arabinofuranosyl]-9H-purin-6-amine

2-Fluoro-9-[3,5-O-[(1-methylethoxy)phosphinylidene]-β-D-arabinofuranosyl]-9H-purin-6-amine

2-Fluoro-9-[5-O-[(S)-[2-(3-hydroxy-2,2-dimethyl-1-thioxopropoxy)ethoxy][(phenylmethyl)amino]phosphinyl]-β-D-arabinofuranosyl]-9H-purin-6-amine

L-Leucine, N-phosphono-, 1-ethyl ester, cyclic (P→3′,5′)-ester with 9-β-D-arabinofuranosyl-2-fluoro-9H-purin-6-amine