CYTIDINE
3',5'-O-[(1,1,3,3-tetraisopropyl)-1,3-disiloxanediyl]cytidine
N4-isobutyryl-2'-O-methyl-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)-cytidine
N4-isobutyryl-3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)-cytidine
N4-isobutyryl-2'-O-methylcytidine