. "gemcitabine"@en . . . "gemcitabine"@en . "C056507" . "2',2'-difluoro-2'-deoxycytidine"@en . . "2',2'-difluorodeoxycytidine"@en . . "C0045093" . "2',2'-DFDC"@en . "dFdCyd"@en . . "2'-deoxy-2'-difluorocytidine"@en .