1	HYN	Imidazolidine-2,4-dione	1.000
2	XJV	Imidazolidin-2-one	0.857
3	9UT	1,3-thiazole-2,4-dione	0.750
4	9UW	2-sulfanylideneimidazol-4-one	0.750
5	OD3	1,3-thiazolidine-2,4-dione	0.750
6	SZB	Succinimide	0.750
7	IMD	Imidazole	0.714
8	6HQ	1,5,5-trimethylimidazolidine-2,4-dione	0.700