Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[hydrogen (2,4,6-trichlorophenyl)phosphonate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[hydrogen (3,5-dichlorophenyl)phosphonate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[hydrogen (3,4-dichlorophenyl)phosphonate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[hydrogen (2,4-dichlorophenyl)phosphonate]

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-(4-nitrophenyl phosphonate)

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-(4-chlorophenyl phosphonate)

Cytidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-(4-nitrophenyl phosphonate)

Cytidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-(4-chlorophenyl phosphonate)

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-(4-nitrophenyl phosphonate)

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-(4-chlorophenyl phosphonate)

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[(pentafluorophenyl)phosphinate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[(pentachlorophenyl)phosphinate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[(2,4,6-trichlorophenyl)phosphinate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[(3,5-dichlorophenyl)phosphinate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[(3,4-dichlorophenyl)phosphinate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[(2,4-dichlorophenyl)phosphinate]

Inosine, 2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-2,3-dihydro-

Inosine, 5′-chloro-5′-deoxy-2,3-dihydro-2′,3′-O-(1-methylethylidene)-

Inosine, 5′-deoxy-2,3-dihydro-2′,3′-O-(1-methylethylidene)-

Inosine, 2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-2,3-dihydro-1-methyl-