Synonyms: 89889-81-6;6-(4-Chloro-benzyl)-1-(3,4-dihydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-3-methyl-1,6-dihydro-pyrazolo(4,3-d)pyrimidin-7-one;6-(4-Chloro-benzyl)-1-(3,4-dihydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-3-methyl-1,6-dihydro-pyrazolo[4,3-d]pyrimidin-7-one;AC1MHNMB;6-[(4-chlorophenyl)methyl]-1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-3-methylpyrazolo[4,3-d]pyrimidin-7-one