1 DZ8 2-fluoro-8-[(6-iodo-1,3-benzodioxol-5-yl)methyl]-9-[3-(isopropylamino)propyl]-9h-purin-6-amine 1.000 2 PUX 8-benzo[1,3]dioxol-,5-ylmethyl-9-butyl-2-fluoro-9h-purin-6-ylamine 0.800 3 PU6 8-benzo[1,3]dioxol-,5-ylmethyl-9-butyl-9h- 0.767