1	39A	6-amino-3,9-dimethyl-9h-purin-3-ium	1.000
2	3MA	6-amino-3-methylpurine	0.917
3	ADK	3-methyl-3h-purin-6-ylamine	0.917
4	ADZ	9-methyl-9h-purin-6-amine	0.917
5	2EC	9-ethyl-9h-purin-6-ylamine	0.846
6	W5M	9-methyl-9h-purine-2,6-diamine	0.846
7	ADE	Adenine	0.833
8	JXN	8-bromanyl-9-ethyl-purin-6-amine	0.786
9	JY8	9-ethyl-8-methyl-purin-6-amine	0.786
10	6AP	9h-purine-2,6-diamine	0.769
11	8G8	2-chloranyl-9-methyl-purine	0.769
12	A2F	2-fluoroadenine	0.769
13	IGA	6-amino-3,7-dihydro-2h-purin-2-one	0.769
14	KB5	6-azanyl-9~{H}-purine-8-thiol	0.769
15	M1A	6-amino-1-methylpurine	0.769
16	Q88	9h-purine-6,8-diamine	0.769
17	W4S	7-methyl-7h-pyrrolo[2,3-D]pyrimidin-4-amine	0.769
18	YH7	6-amino-1,9-dihydro-2h-purine-2-thione	0.769
19	WUT	9~{H}-purine	0.750
20	APS	9-hydroxypropyladenine, S-isomer	0.733
21	ARP	9-hydroxypropyladenine, R-isomer	0.733
22	JXW	9-(2-chloroethyl)-8-methyl-purin-6-amine	0.733
23	JXZ	2-(6-azanyl-8-methyl-purin-9-yl)ethanol	0.733
24	JYB	9-ethyl-8-ethynyl-purin-6-amine	0.733
25	8WT	8-methylsulfanyl-7~{H}-purin-6-amine	0.714
26	9MG	9-methylguanine	0.714
27	I7U	3-methyl-7~{H}-purine-2,6-dione	0.714
28	OYK	~{N},9-dimethylpurin-6-amine	0.714