1	CLV	{(2s)-2-[(1s)-1-aminoethyl]-5-oxo-2,5-dihydro-1h-imidazol-1-yl}acetic acid	1.000
2	MDO	{2-[(1s)-1-aminoethyl]-4-methylidene-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid	0.929
3	175	3,5-dihydro-5-methylidene-4h-imidazol-4-on	0.867
4	CRX	[2-(1-aminoethyl)-2-hydroxy-4-methylene-5-oxoimidazolidin-1-yl]acetic acid	0.867
5	KWS	{2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-methylidene-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid	0.812
6	CR5	(2r)-2-(aminomethyl)-2,4-dihydroxy-5-oxo-3-(2-oxoethyl)-2,5-dihydro-1h-imidazol-3-ium	0.800
7	C99	{(2r)-2-[(1s,2r)-1-amino-2-hydroxypropyl]-2-hydroxy-4,5-dioxoimidazolidin-1-yl}acetic acid	0.765
8	Q2K	2-[2-(3-methylsulfanylpropanimidoyl)-4,5-bis(oxidanylidene)imidazol-1-yl]ethanoic acid	0.765
9	CWR	(4-methyl-5-oxo-2,5-dihydro-1h-imidazol-1-yl)acetic acid	0.714