1	ERO	5-ethenyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	1.000
2	DOR	(4s)-2,6-dioxohexahydropyrimidine-4-carboxylic acid	0.846
3	OG6	6-[bis(oxidanyl)methyl]-5~{H}-pyrimidine-2,4-dione	0.846
4	ORO	Orotic acid	0.846
5	FOT	5-fluoro-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.786
6	HRO	5-chloro-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.786
7	IJZ	5-amino-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.786
8	IRO	5-iodo-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.786
9	RRO	5-bromo-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.786
10	TJ4	5,6-dimethyl-2-oxo-2,3-dihydropyrimidine-4-carboxylic acid	0.786
11	TJJ	2-oxo-2,3-dihydropyrimidine-4-carboxylic acid	0.769
12	Y3G	5-ethynylpyrimidine-2,4(1h,3h)-dione	0.769
13	YRO	5-(3,3-dimethylbutyl)-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid	0.765
14	D1X	2,6-dioxo-1,2,3,6-tetrahydropyridine-4-carboxylic acid	0.714
15	OXC	Oxonic acid	0.714
16	TEV	6-methyl-2-oxo-2,5-dihydropyrimidine-4-carboxylic acid	0.714