N-[2-[[[[1,2-Dihydro-1-(2-C-methyl-β-D-ribofuranosyl)-2-oxo-4-pyrimidinyl]amino]carbonyl]oxy]ethyl]glycine 1-(acetyloxy)-2-methylpropyl ester

N-[2-[[[[1,2-Dihydro-1-(2-C-methyl-β-D-ribofuranosyl)-2-oxo-4-pyrimidinyl]amino]carbonyl]oxy]ethyl]glycine (acetyloxy)methyl ester

1-(Acetyloxy)ethyl N-[2-[[[[1,2-dihydro-1-(2-C-methyl-β-D-ribofuranosyl)-2-oxo-4-pyrimidinyl]amino]carbonyl]oxy]ethyl]carbamate

N-[2-[[[[1,2-Dihydro-1-(2-C-methyl-β-D-ribofuranosyl)-2-oxo-4-pyrimidinyl]amino]carbonyl]oxy]ethyl]glycine 1-(2-methyl-1-oxopropoxy)ethyl ester

2′-C-Methyl-N-[8,11,11-trimethyl-1,6,10-trioxo-2,7,9-trioxa-5-azadodec-1-yl]cytidine

N-[11,11-Dimethyl-8-(1-methylethyl)-1,6,10-trioxo-2,7,9-trioxa-5-azadodec-1-yl]-2'-C-methylcytidine

(Acetyloxy)methyl N-[2-[[[[1,2-dihydro-1-(2-C-methyl-β-D-ribofuranosyl)-2-oxo-4-pyrimidinyl]amino]carbonyl]oxy]ethyl]carbamate

1-(Acetyloxy)-2-methylpropyl N-[2-[[[[1,2-dihydro-1-(2-C-methyl-β-D-ribofuranosyl)-2-oxo-4-pyrimidinyl]amino]carbonyl]oxy]ethyl]carbamate

2′-C-Methyl-N-(11-methyl-1,6,10-trioxo-2,7,9-trioxa-5-azadodec-1-yl)cytidine

2′-C-Methyl-N-[11-methyl-8-(1-methylethyl)-1,6,10-trioxo-2,7,9-trioxa-5-azadodec-1-yl]cytidine

N-(8,11-Dimethyl-1,6,10-trioxo-2,7,9-trioxa-5-azadodec-1-yl)-2'-C-methylcytidine

N-[8-(1,1-Dimethylethyl)-11,11-dimethyl-1,6,10-trioxo-2,7,9-trioxa-5-azadodec-1-yl]-2'-C-methylcytidine

N-[4-(Acetyloxy)-1-oxobutyl]-2'-C-methylcytidine

N-[[2-(Dimethylamino)ethoxy]carbonyl]-2'-C-methylcytidine

Phenylmethyl N-[3-[[[[1,2-dihydro-1-(2-C-methyl-β-D-ribofuranosyl)-2-oxo-4-pyrimidinyl]amino]carbonyl]oxy]propyl]carbamate

N-[4-(2,2-Dimethyl-1-oxopropoxy)-1-oxobutyl]-2'-C-methylcytidine

Phenyl N-[2-[[[[1,2-dihydro-1-(2-C-methyl-β-D-ribofuranosyl)-2-oxo-4-pyrimidinyl]amino]carbonyl]oxy]ethyl]carbamate

N-[[2-[[(2S)-2-Amino-1-oxo-3-phenylpropyl]amino]ethoxy]carbonyl]-2'-C-methylcytidine

N-[(3-Cyclohexyl-3-oxopropoxy)carbonyl]-2'-C-methylcytidine

N-[[2-[[(2S)-2-Amino-3-methyl-1-oxobutyl]amino]ethoxy]carbonyl]-2'-C-methylcytidine