5-Methyl-1-[(2R,5S)-tetrahydro-5-[(methylsulfinyl)methyl]-2-furanyl]-2,4(1H,3H)-pyrimidinedione

3′-Deoxy-5′-S-ethyl-5′-thiothymidine

3′-Deoxy-5′-S-methyl-5′-thiothymidine

Adenosine, 5′→P′-ester with thiodiphosphoric acid ((HO)2P(O)OP(S)(OH)(SH))

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

Cytidine, N-benzoyl-5-(benzoyloxy)-2′-deoxy-

Cytidine, N-benzoyl-5-(benzoyloxy)-2′-deoxy-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Cytidine, 2′-deoxy-5-hydroxy-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Thymidine, 3′-[(S)-hydrogen methylphosphonoselenoate]

Thymidine, 3′-[(R)-hydrogen methylphosphonoselenoate]

Guanosine, 2′-O-methyl-, 3′-[(S)-hydrogen methylphosphonothioate]

Guanosine, 2′-O-methyl-, 3′-[(R)-hydrogen methylphosphonothioate]

Adenosine, 2′-O-methyl-, 3′-[(S)-hydrogen methylphosphonothioate]

Adenosine, 2′-O-methyl-, 3′-[(R)-hydrogen methylphosphonothioate]

Cytidine, 2′-O-methyl-, 3′-[(S)-hydrogen methylphosphonothioate]

Cytidine, 2′-O-methyl-, 3′-[(R)-hydrogen methylphosphonothioate]

Uridine, 2′-O-methyl-, 3′-[(S)-hydrogen methylphosphonothioate]

Uridine, 2′-O-methyl-, 3′-[(R)-hydrogen methylphosphonothioate]

Guanosine, 2′-deoxy-, 3′-[(S)-hydrogen methylphosphonothioate]

Guanosine, 2′-deoxy-, 3′-[(R)-hydrogen methylphosphonothioate]