1'-Epi 3,5-Dibenzoate-2,2-difluorouridine-13C,15N2

1'-Epi 3,5-Dibenzoate-2,2-difluorouridine-13C,15N2 is the 13C- and 15N-labeled 1-(3,5-Di-O-benzoyl-2-deoxy-2,2-difluoro-α-D-erythro-pentofuranosyl)-2,4(1H,3H)-pyrimidinedione (HY-W778177).