1	FOT	5-fluoro-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	1.000
2	DOR	(4s)-2,6-dioxohexahydropyrimidine-4-carboxylic acid	0.917
3	OG6	6-[bis(oxidanyl)methyl]-5~{H}-pyrimidine-2,4-dione	0.917
4	ORO	Orotic acid	0.917
5	HRO	5-chloro-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.846
6	IJZ	5-amino-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.846
7	IRO	5-iodo-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.846
8	RRO	5-bromo-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.846
9	TJJ	2-oxo-2,3-dihydropyrimidine-4-carboxylic acid	0.833
10	ERO	5-ethenyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.786
11	D1X	2,6-dioxo-1,2,3,6-tetrahydropyridine-4-carboxylic acid	0.769
12	OXC	Oxonic acid	0.769
13	TEV	6-methyl-2-oxo-2,5-dihydropyrimidine-4-carboxylic acid	0.769
14	6MU	6-methylpyrimidine-2,4-diol	0.750
15	FPY	(4s)-5-fluoro-4-hydroxy-3,4-dihydropyrimidin-2(1h)-one	0.750
16	URF	5-fluorouracil	0.750
17	EJZ	5-nitro-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.733
18	TJ4	5,6-dimethyl-2-oxo-2,3-dihydropyrimidine-4-carboxylic acid	0.714