1	P1R	Pyrimidine	1.000
2	71O	Pyrimidin-2-ol	0.857
3	93B	1,3-diazinane-2-thione	0.857
4	A1BDM	2-bromopyrimidine	0.857
5	HGW	5-iodanylpyrimidine	0.857
6	HHN	5-bromanylpyrimidine	0.857
7	L60	1,3-diazinan-2-one	0.857
8	LGA	Pyrimidin-2-amine	0.857
9	T5V	Pyrimidin-5-amine	0.857
10	W3J	1,4,5,6-tetrahydropyrimidin-2-amine	0.857
11	8GF	2-methylpyrimidin-4-amine	0.750
12	938	4-chloranylpyrimidin-5-amine	0.750
13	CYT	6-aminopyrimidin-2(1h)-one	0.750
14	DJP	5-fluoropyrimidin-2-ol	0.750
15	DS1	2-aminopyrimidin-5-ol	0.750
16	DUC	Dihydropyrimidine-2,4(1h,3h)-dione	0.750
17	HPY	4-hydroxy-3,4-dihydro-1h-pyrimidin-2-one	0.750
18	JH4	N-methylpyrimidin-2-amine	0.750
19	LDB	4-thiouracil	0.750
20	LG3	Pyrimidine-2,4-diamine	0.750
21	OS0	4-oxidanyl-3,4-dihydro-1h-pyrimidin-2-one	0.750
22	TI5	5-methylpyrimidin-4-amine	0.750
23	TUL	2-thioxo-2,3-dihydropyrimidin-4(1h)-one	0.750
24	URA	Uracil	0.750
25	USD	(E)-1-(pyrimidin-2-yl)methanimine	0.750
26	0PY	Pyridine	0.714
27	PIP	Piperidine	0.714