[(2R,3S,4R,5R)-3,4-dihydroxy-5-(6-oxo-3H-purin-9-yl)oxolan-2-yl]methyl phosphate [(2R,3S,4R,5R)-3,4-dihydroxy-5-(6-oxo-3H-purin-9-yl)tetrahydrofuran-2-yl]methyl phosphate [(2R,3S,4R,5R)-3,4-dihydroxy-5-(6-oxo-3H-purin-9-yl)-2-tetrahydrofuranyl]methyl phosphate [(2R,3S,4R,5R)-3,4-dihydroxy-5-(6-keto-3H-purin-9-yl)tetrahydrofuran-2-yl]methyl phosphate NCGC00142489-01 ZINC04228242