Synonyms: 2,3,5-tri-o-acetyl-1,4-anhydro-1-(7-oxo-4,7-dihydro-2h-pyrazolo[4,3-d]pyrimidin-3-yl)pentitol;NSC109316;AC1Q66GB;AC1L6L69;AR-1D2175;NSC-109316;3-[2,3,5-Tri-O-acetyl-.beta.-d-ribofuranosyl]pyrazolo[4,3-d]pyrimidin-7-one;[3,4-diacetyloxy-5-(7-oxo-2,4-dihydropyrazolo[4,3-d]pyrimidin-3-yl)oxolan-2-yl]methyl acetate