1	AZG	5-amino-1h-[1,2,3]triazolo[4,5-D]pyrimidin-7-ol	1.000
2	9QC	5-azanyl-3,6-dihydro-[1,2,3]triazolo[4,5-D]pyrimidin-7-one	1.000
3	AZA	8-azaxanthine	0.833
4	GUN	Guanine	0.833
5	8IG	8-iodo-guanine	0.769
6	9MG	9-methylguanine	0.769
7	A1LXN	2-azanyl-8-methyl-1,9-dihydropurin-6-one	0.769
8	ANG	8-aminoguanine	0.769
9	B55	2-amino-8-sulfanyl-1,9-dihydro-6h-purin-6-one	0.769
10	BRG	8-bromoguanine	0.769
11	MY6	2-amino-7-methyl-1,7-dihydro-6h-purin-6-one	0.769
12	OXG	8-oxoguanine	0.769
13	PE0	Pterine	0.769
14	2BP	9h-purin-2-amine	0.750
15	7HP	7-hydroxy-pyrazolo[4,3-D]pyrimidine	0.750
16	A1BD4	Allopurinol	0.750
17	HPA	Hypoxanthine	0.750
18	PPO	3h-pyrazolo[4,3-D]pyrimidin-7-ol	0.750
19	44V	(6s)-2-amino-6-methyl-5,6,7,8-tetrahydropteridin-4(3h)-one	0.714
20	44W	2-amino-6-methyl-7,8-dihydropteridin-4(3h)-one	0.714
21	7PD	2-aminopteridine-4,7(3h,8h)-dione	0.714
22	B60	2-amino-8-methyl-7,8-dihydropteridin-4(3h)-one	0.714
23	B62	(6r)-2-amino-6-methyl-5,6,7,8-tetrahydropteridin-4(3h)-one	0.714
24	JSO	2-azanyl-6-methyl-3~{H}-pteridin-4-one	0.714
25	NDM	7,9-dimethylguanine	0.714
26	XHP	2-amino-6-methylidene-6,7-dihydropteridin-4(3h)-one	0.714
27	XTN	2-amino-1,5-dihydropteridine-4,6-dione	0.714