Synonyms: 133488-37-6;AC1L9QM9;.alpha.-1-(5,6-Di-O-acetyl-3-phthalimido-2,3-dideoxy-D-ribo-hexofuranosyl)-5-chlorouracil;alpha-1-(5,6-Di-O-acetyl-3-phthalimido-2,3-dideoxy-D-ribo-hexofuranosyl)-5-chlorouracil;[(2R)-2-acetyloxy-2-[(2S,3S,5S)-5-(5-chloro-2,4-dioxopyrimidin-1-yl)-3-(1,3-dioxoisoindol-2-yl)oxolan-2-yl]ethyl] acetate;2,4(1H,3H)-Pyrimidinedione, 5-chloro-1-(5,6-di-O-acetyl-2,3-dideoxy-3-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-alpha-D-ribo-hexofuranosyl)-;2,4(1H,3H)-Pyrimidinedione, 5-chloro-1-[5,6-di-O-acetyl-2,3-dideoxy-3-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-.alpha.-D-ribo-hexofuranosyl]-