N4-ацетил-O5′-(4，4′-二метилкислорода三бензолметил)-O2′-(1，1-二кислородасеры代吗啉-4-серы代羰基)胞啶O3′-(O-(2-氰этил)-N，N-二изопропил亚фосфораамид
N4-Acetyl-O5′-(4，4′-dimethoxytrityl)-O2′-(1，1-dioxothiomorpholine-4-thiocarbonyl)cytidine O3′-(O-(2-cyanoethyl)-N，N-diisopropylphosphoramidite)
N4-Acetyl-O5′-(4，4′-dimethoxytrityl)-O2′-(1，1-dioxothiomorpholine-4-thiocarbonyl)cytidine O3′-(O-(2-cyanoethyl)-N，N-diisopropylphosphoramidite)