[5-(6-aminopurin-9-yl)oxolan-2-yl]methanol [5-(6-aminopurin-9-yl)tetrahydrofuran-2-yl]methanol [5-(6-amino-9-purinyl)-2-tetrahydrofuranyl]methanol NCI60_042206 D6789_SIGMA NunclonD multidishes HSCI1_000178 NSC98700 Oprea1_639467 SBB000736