3′-Thymidylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, monoanhydride with 2,4,6-trimethylbenzenesulfonic acid, 4-chlorophenyl ester

3′-Cytidylic acid, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, monoanhydride with 2,4,6-trimethylbenzenesulfonic acid, 4-chlorophenyl ester

3′-Guanylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-, monoanhydride with 2,4,6-trimethylbenzenesulfonic acid, 4-chlorophenyl ester

3′-Adenylic acid, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, monoanhydride with 2,4,6-trimethylbenzenesulfonic acid, 4-chlorophenyl ester

6-Azido-5-bromo-2′-deoxy-5′-uridylic acid

5-Bromo-2′-deoxy-6-iodo-5′-uridylic acid

6-Amino-2′-deoxy-5-methoxy-5′-uridylic acid

6-Azido-2′-deoxy-5-methoxy-5′-uridylic acid

2′-Deoxy-6-iodo-5-methoxy-5′-uridylic acid

6-Azido-5-chloro-2′-deoxy-5′-uridylic acid

5-Chloro-2′-deoxy-6-iodo-5′-uridylic acid

6-Azido-2′-deoxy-5-fluoro-5′-uridylic acid

6-Amino-5-bromo-2′-deoxy-5′-uridylic acid

6-Amino-2′-deoxy-5-fluoro-5′-uridylic acid

2′-Deoxy-6-(dimethylamino)-5′-uridylic acid

1′-C-(Hydroxymethyl)-6-iodo-5′-uridylic acid

6-Azido-5-fluoro-5′-uridylic acid

6-Amino-5-bromo-5′-uridylic acid

6-Amino-5-fluoro-5′-uridylic acid

6-(Dimethylamino)-5′-uridylic acid