110289-24-2 2-Adhcp 2-Amino-1,9-dihydro-9-(2-fluoro-3-hydroxy-4-(hydroxymethyl)cyclopentyl)-6H-purin-6-one 6H-Purin-6-one, 2-amino-1,9-dihydro-9-(2-fluoro-3-hydroxy-4-(hydroxymethyl)cyclopentyl)-