. . "Zebularine" . . . . "1-[(2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2(1H)-one" . . . "Pyrimidin-2-one \u03B2-(D)-ribofuranoside" . "1-(\u03B2-(D)-Ribofuranosyl)-2(1H)-pyrimidinone" . . . . . . . . "Zebularine" . "zebularine" . .