1,3,5-Triazin-2(1H)-one,4-amino-1-(2,3,5-tri-O-benzoyl-.beta.-D-ribofuranosyl)- 28998-36-9 5-Azacytidine,2',3',5'-tribenzoate NSC291931 s-Triazin-2(1H)-one, 4-amino-1-.beta.-D-ribofuranosyl-, 2',3',5'-tribenzoate