1	MOG	5-amino-2-methyl-6h-oxazolo[5,4-D]pyrimidin-7-one	1.000
2	44V	(6s)-2-amino-6-methyl-5,6,7,8-tetrahydropteridin-4(3h)-one	0.786
3	44W	2-amino-6-methyl-7,8-dihydropteridin-4(3h)-one	0.786
4	B62	(6r)-2-amino-6-methyl-5,6,7,8-tetrahydropteridin-4(3h)-one	0.786
5	JSO	2-azanyl-6-methyl-3~{H}-pteridin-4-one	0.786
6	XHP	2-amino-6-methylidene-6,7-dihydropteridin-4(3h)-one	0.786
7	9DG	9-deazaguanine	0.769
8	GUN	Guanine	0.769
9	6FP	2-amino-4-oxo-3,4-dihydropteridine-6-carbaldehyde	0.733
10	HHR	6-hydroxymethylpterin	0.733
11	PH2	2-amino-6-hydroxymethyl-7,8-dihydro-3h-pteridin-4-one	0.733
12	ZZZ	6-formyltetrahydropterin	0.733
13	8IG	8-iodo-guanine	0.714
14	9MG	9-methylguanine	0.714
15	ANG	8-aminoguanine	0.714
16	B55	2-amino-8-sulfanyl-1,9-dihydro-6h-purin-6-one	0.714
17	BRG	8-bromoguanine	0.714
18	MY6	2-amino-7-methyl-1,7-dihydro-6h-purin-6-one	0.714
19	OXG	8-oxoguanine	0.714
20	PE0	Pterine	0.714
21	QBK	5-azanyl-[1,3]thiazolo[5,4-D]pyrimidine-2,7-dione	0.714