1H-Purin-2-chloro-6-amine, N-(3-methyl-2-butenyl)- 2-Chloro-N-(3-methyl-2-butenyl)-9H-purin-6-amine AIDS-146163 AIDS146163 N-(2-Chloro-9H-purin-6-yl)-N-(3-methyl-2-butenyl)amine NSC672179