((2R,3S,4S,5R)-5-(6-amino-2-hydroxy-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl dihydrogen phosphate;6-Amino-2-hydroxy-9-(?-D-arabinofuranosyl)purine 5'-Phosphate; 6-Amino-1,9-dihydro-9-(5-O-phosphono-?-D-arabinofuranosyl)-2H-purin-2-one;
