1	8GF	2-methylpyrimidin-4-amine	1.000
2	ICP	2-methyl-5-methylene-5h-pyrimidin-4-ylideneamine	0.889
3	PYD	2,5-dimethyl-pyrimidin-4-ylamine	0.889
4	HMH	4-amino-5-hydroxymethyl-2-methylpyrimidine	0.800
5	NSP	5-(aminomethyl)-2-methylpyrimidin-4-amine	0.800
6	71M	6-methylpyridin-2-amine	0.778
7	CYT	6-aminopyrimidin-2(1h)-one	0.778
8	LG3	Pyrimidine-2,4-diamine	0.778
9	TI5	5-methylpyrimidin-4-amine	0.778
10	USD	(E)-1-(pyrimidin-2-yl)methanimine	0.778
11	P1R	Pyrimidine	0.750
12	17E	5-methylcytosine	0.700
13	1LD	5-fluorocytosine	0.700
14	1MC	1-methylcytosine	0.700
15	2ZX	6-chloropyrimidine-2,4-diamine	0.700
16	3AW	6-methyl-1,3,5-triazine-2,4-diamine	0.700
17	3AY	Pyrimidine-2,4,6-triamine	0.700
18	3MC	3-methylcytosine	0.700
19	4JO	5-bromo-6-methylpyridin-2-amine	0.700
20	6UA	6-aminopyrimidine-2,4(3h,5h)-dione	0.700
21	71L	4,6-dimethylpyridin-2-amine	0.700
22	PBV	6-ethylpyridin-2-amine	0.700
23	Q4H	4-azanylpyrimidine-5-carbonitrile	0.700