Phenylmethyl N-[1-[5-O-[bis[(5-nitro-2-furanyl)methoxy]phosphinyl]-2,3-bis-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate

Phenylmethyl N-[1,2-dihydro-1-[5-O-[[(5-nitro-2-thienyl)methoxy][(phenylmethyl)amino]phosphinyl]-2,3-bis-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-2-oxo-4-pyrimidinyl]carbamate

Phenylmethyl N-[1,2-dihydro-1-[5-O-[[(1-methyl-2-nitro-1H-imidazol-5-yl)methoxy][(2-nitro-5-thiazolyl)methoxy]phosphinyl]-2,3-bis-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-2-oxo-4-pyrimidinyl]carbamate

Phenylmethyl N-[1-[5-O-[bis[(2-nitro-5-thiazolyl)methoxy]phosphinyl]-2,3-bis-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate

Phenylmethyl N-[1,2-dihydro-1-[5-O-[[(1-methyl-2-nitro-1H-imidazol-5-yl)methoxy][(phenylmethyl)amino]phosphinyl]-2,3-bis-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-2-oxo-4-pyrimidinyl]carbamate

L-Alanine, N-[hydroxy[(5-nitro-2-thienyl)methoxy]phosphinyl]-, phenylmethyl ester, 5′-ester with 1-[2,3-bis-O-[(4-methoxyphenyl)diphenylmethyl]-β-D-arabinofuranosyl]-4-[[(4-methoxyphenyl)diphenylmethyl]amino]-2(1H)-pyrimidinone

Phenylmethyl N-[1-[5-O-[bis[(5-nitro-2-furanyl)methoxy]phosphinyl]-2-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate

Phenylmethyl N-[1,2-dihydro-1-[5-O-[[(5-nitro-2-thienyl)methoxy][(phenylmethyl)amino]phosphinyl]-2-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-2-oxo-4-pyrimidinyl]carbamate

Phenylmethyl N-[1,2-dihydro-1-[5-O-[[(1-methyl-2-nitro-1H-imidazol-5-yl)methoxy][(2-nitro-5-thiazolyl)methoxy]phosphinyl]-2-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-2-oxo-4-pyrimidinyl]carbamate

Phenylmethyl N-[1-[5-O-[bis[(2-nitro-5-thiazolyl)methoxy]phosphinyl]-2-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate

Phenylmethyl N-[1,2-dihydro-1-[5-O-[[(1-methyl-2-nitro-1H-imidazol-5-yl)methoxy][(phenylmethyl)amino]phosphinyl]-2-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-2-oxo-4-pyrimidinyl]carbamate

Phenylmethyl N-[1,2-dihydro-2-oxo-1-[2-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-4-pyrimidinyl]carbamate

Phenylmethyl N-[1-[2,3-bis-O-[(phenylmethoxy)carbonyl]-β-D-arabinofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]carbamate

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

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

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

L-Leucine, N-[hydroxy(2-ethoxy-2-oxoethoxy)phosphinyl]-, ethyl ester, 5′-ester with 1-β-D-arabinofuranosyl-4-[[bis(4-methoxyphenyl)phenylmethyl]amino]-2(1H)-pyrimidinone

L-Leucine, N-[hydroxy(2-methoxy-2-oxoethoxy)phosphinyl]-, methyl ester, 5′-ester with 1-β-D-arabinofuranosyl-4-[[bis(4-methoxyphenyl)phenylmethyl]amino]-2(1H)-pyrimidinone

1-β-D-Arabinofuranosyl-4-[[bis(4-methoxyphenyl)phenylmethyl]amino]-2(1H)-pyrimidinone

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