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B207910 N-?Benzoyl-?2'-?deoxy-?2',?2'-?difluorocytidine 3’-Benzoate 5’-(4-Methylbenzenesulfonate)

D232760 2’-Deoxy-2’,2’-difluorocytidine 5’-(4-Methylbenzenesulfonate)

B207925 N-?Benzoyl-?2'-?deoxy-?5'-?O-?[(1,?1-?dimethylethyl)?dimethylsilyl]?-?2',?2'-?difluorocytidine 3’-Benzoate

D232770 2'-?Deoxy-?5'-?O-?[(1,?1-?dimethylethyl)?dimethylsilyl]?-?2',?2'-?difluorocytidine