2',3'-O-异亚丙基胞苷

cytidylyl-(3'->5')-cytidine

N4-acetyl-O2',O3',O5'-tribenzoyl-cytidine

[3,4-dibenzoyloxy-5-(2-oxo-4-sulfanylidenepyrimidin-1-yl)oxolan-2-yl]methyl benzoate

1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-4-(pyridin-2-ylthio)pyrimidin-2(1H)-one