L-Alanine,N-[(4-chlorophenoxy)hydroxyphosphinyl]-,2-propylpentylester,5'-esterwith1-[4-C-azido-2-deoxy-2-methyl-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

Uridine,4'-C-azido-5'-O-[(2R,4S)-4-(3-chlorophenyl)-2-oxido-1,3,2-dioxaphosphorinan-2-yl]-,2',3'-bis(2-methylpropanoate)

N-(4'-C-Azido-P-phenyl-5'-uridylyl)-L-phenylalaninephenylmethylester

N-[4'-C-Azido-P-(4-methoxyphenyl)-5'-cytidylyl]-L-alaninephenylmethylester

N-[4'-C-Azido-2',3'-O-(1-methylethylidene)-P-phenyl-5'-cytidylyl]-L-alanine-methylethylester

1-[4'-C-Azido-2',3'-O-(1-methylethylidene)-P-phenyl-5'-cytidylyl]-L-prolineethylester

N-[4'-C-Azido-P-(4-chlorophenyl)-5'-cytidylyl]-L-leucineethylester

Uridine,4'-C-azido-,5'-[hydrogenN-[1-(ethoxycarbonyl)cyclopentyl]phosphoramidate]

Cytidine,4'-C-azido-,5'-[phenylN-[1-(ethoxycarbonyl)cyclopentyl]phosphoramidate]

Cytidine,4'-C-azido-,5'-[phenylN-[1,1-dimethyl-2-oxo-2-(phenylmethoxy)ethyl]phosphoramidate]

N-(4'-C-Azido-P-phenyl-5'-cytidylyl)-L-phenylalaninephenylmethylester

N-[[P(S)]-4'-C-Azido-P-1-naphthalenyl-5'-uridylyl]-L-alaninephenylmethylester

N-(4'-C-Azido-P-1-naphthalenyl-5'-uridylyl)-Lphenylalanineethylester

N-[[P(R)]-4'-C-Azido-P-1-naphthalenyl-5'-uridylyl]-L-alaninephenylmethylester

L-Alanine,N-(hydroxyphenoxyphosphinyl)-,phenylmethylester,5'-esterwith1-[4-C-azido-2-deoxy-2-methyl-β-D-arabinofuranosyl]-5-iodo-2,4(1H,3H)-pyrimidinedione

N-(4'-C-Azido-P-1-naphthalenyl-5'-cytidylyl)-Lalaninephenylmethylester

N-[4'-C-Azido-2',3'-O-(1-methylethylidene)-P-phenyl-5'-cytidylyl]-L-alaninephenylmethylester

L-Alanine,N-[hydroxy(1-naphthalenyloxy)phosphinyl]-,phenylmethylester,5'-esterwithN'-[1-(4-C-azido-2-deoxy-2-methyl-β-Darabinofuranosyl)-,2-dihydro-2-oxo-4-pyrimidinyl]-N,N-dimethylmethanimidamide

N-(4'-C-Azido-P-phenyl-5'-guanylyl)-L-alanine-methylethylester

L-Alanine,N-[[4-chloro-5-methyl-2-(1-methylethyl)phenoxy]hydroxyphosphinyl]-,ethylester,5'-esterwith1-[4-C-azido-2-deoxy-2-methyl-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione