Synonyms: 133488-30-9;AC1L9QM3;.beta.-1-(5,6-Di-O-acetyl-2,3-dideoxy-3-phthalimido-D-ribo-hexafuranosyl)uracil;beta-1-(5,6-Di-O-acetyl-2,3-dideoxy-3-phthalimido-D-ribo-hexafuranosyl)uracil;[(2R)-2-acetyloxy-2-[(2S,3S,5R)-3-(1,3-dioxoisoindol-2-yl)-5-(2,4-dioxopyrimidin-1-yl)oxolan-2-yl]ethyl] acetate;4(1H,3H)-Pyrimidinedione, 1-(5,6-di-O-acetyl-2,3-dideoxy-3-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-beta-D-ribo-hexofuranosyl)-;4(1H,3H)-Pyrimidinedione, 1-[5,6-di-O-acetyl-2,3-dideoxy-3-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-.beta.-D-ribo-hexofuranosyl]-