1 JY8 9-ethyl-8-methyl-purin-6-amine 1.000 2 JXW 9-(2-chloroethyl)-8-methyl-purin-6-amine 0.929 3 JXZ 2-(6-azanyl-8-methyl-purin-9-yl)ethanol 0.929 4 JYB 9-ethyl-8-ethynyl-purin-6-amine 0.929 5 2EC 9-ethyl-9h-purin-6-ylamine 0.923 6 JXN 8-bromanyl-9-ethyl-purin-6-amine 0.857 7 ADZ 9-methyl-9h-purin-6-amine 0.846 8 JY2 8-methyl-9-pent-4-ynyl-purin-6-amine 0.812 9 APS 9-hydroxypropyladenine, S-isomer 0.800 10 ARP 9-hydroxypropyladenine, R-isomer 0.800 11 39A 6-amino-3,9-dimethyl-9h-purin-3-ium 0.786 12 W5M 9-methyl-9h-purine-2,6-diamine 0.786 13 ADE Adenine 0.769 14 JXK 9-(3-azanylpropyl)-8-bromanyl-purin-6-amine 0.750 15 JYT 3-(6-azanyl-8-bromanyl-purin-9-yl)propan-1-ol 0.750 16 3MA 6-amino-3-methylpurine 0.714 17 6AP 9h-purine-2,6-diamine 0.714 18 8G8 2-chloranyl-9-methyl-purine 0.714 19 A2F 2-fluoroadenine 0.714 20 ADK 3-methyl-3h-purin-6-ylamine 0.714 21 IGA 6-amino-3,7-dihydro-2h-purin-2-one 0.714 22 KB5 6-azanyl-9~{H}-purine-8-thiol 0.714 23 M1A 6-amino-1-methylpurine 0.714 24 Q88 9h-purine-6,8-diamine 0.714 25 W4S 7-methyl-7h-pyrrolo[2,3-D]pyrimidin-4-amine 0.714 26 YH7 6-amino-1,9-dihydro-2h-purine-2-thione 0.714 27 JXE 8-bromanyl-9-(4-bromanylbutyl)purin-6-amine 0.706 28 JXQ 9-hex-5-ynylpurin-6-amine 0.706 29 JXT 8-bromanyl-9-pent-4-ynyl-purin-6-amine 0.706 30 JYK 9-(2-azidoethyl)-8-bromanyl-purin-6-amine 0.706 31 JYW 4-(6-azanyl-8-bromanyl-purin-9-yl)butan-1-ol 0.706