3'-Deoxy-3'-[[(2E)-3-[4-[[(4E)-6-O-(6-deoxy-3,4-di-O-methyl-α-D-mannopyranosyl)-5-O-methyl-β-D-threo-hex-4-enofuranosyl]oxy]phenyl]-2-methyl-1-oxo-2-propen-1-yl]amino]-N,N-dimethyladenosine

[P(S)]-P-Methylthymidylyl-(3'→5')-2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-N,5-dimethylcytidine

(5S,6S)-[5,5'':6,6''-Dicyclo]-(5R,6R)-5,6-dihydrothymidylyl-(3'→5')-2'-deoxy-5,6-dihydro-N,5-dimethylcytidine

(5S,6S)-[5,5'':6,6''-Dicyclo]-(5S,6S)-5,6-dihydro-P-methylthymidylyl-(3'→5')-2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-5,6-dihydro-N,5-dimethylcytidine

(5S,6S)-[5,5'':6,6''-Dicyclo]-(5R,6R)-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-5,6-dihydro-P-methylthymidylyl-(3'→5')-2'-deoxy-5,6-dihydro-N,5-dimethylcytidine

(5S,6S)-[5,5'':6,6''-Dicyclo]-(5R,6R)-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-5,6-dihydro-P-methylthymidylyl-(3'→5')-2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-5,6-dihydro-N,5-dimethylcytidine

(5S,6S)-[5,5'':6,6''-Dicyclo]-[P(S),5R,6R]-5,6-dihydro-P-methylthymidylyl-(3'→5')-2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-5,6-dihydro-N,5-dimethylcytidine

(5S,6S)-[5,5'':6,6''-Dicyclo]-[P(R),5R,6R]-5,6-dihydro-P-methylthymidylyl-(3'→5')-2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-5,6-dihydro-N,5-dimethylcytidine

2'-O,4'-C-Methyleneguanylyl-(3'→5')-2'-O,4'-C-methyleneguanylyl-(3'→5')-2'-O,4'-C-methylenecytidylyl-(3'→5')-2'-O,4'-C-methylenecytidylyl-(3'→5')-2'-O,4'-C-methyleneadenylyl-(3'→5')-2'-O,4'-C-methyleneguanylyl-(3'→5')-5-methyl-2'-O,4'-C-methyleneuridylyl-(3'→5')-2'-O-methyluridine

2'-O-Methyl-5'-O-phosphonoguanylyl-(3'→5')-2'-O-methyladenylyl-(3'→5')-2'-O-methyluridylyl-(3'→5')-2'-O-methylguanylyl-(3'→5')-2'-O-methylcytidine

Choline, hydroxide, trihydrogen pyrophosphate, inner salt, 5'-monoester with N-methylcytidine

2'-Deoxy-3'-O-dephosphinico-5-methylcytidylylmethylene-1H-1,2,3-triazole-4,1-diyl-(3'→5')-2',5'-dideoxycytidine

2',2'''-O-[Oxybis(2,1-ethanediyl-1H-1,2,3-triazole-1,4-diylmethylene)]bis[2-aminoadenosine]

5-[(1E)-3-[[2-[[5-(Acetylamino)-2,6-anhydro-3,5-dideoxy-D-glycero-D-galacto-non-2-enonoyl]amino]ethyl]amino]-3-oxo-1-propen-1-yl]-2'-deoxyuridine

L-Alanine, N-phosphono-, 1-(1-methylethyl) ester, cyclic (P→3',5')-ester with (2'R)-2'-chloro-2'-deoxy-2'-methyladenosine

L-Alanine, N-phosphono-, 1-(1-methylethyl) ester, cyclic (P→3',5')-ester with (2'R)-2'-chloro-2'-deoxy-2'-methyluridine

L-Alanine, N-phosphono-, 1-(1-methylethyl) ester, cyclic (P→3',5')-ester with (2'R)-2'-chloro-2'-deoxy-2'-methylcytidine