1	CL5	N-(3-oxopropyl)glycine	1.000
2	7UC	(3~{R})-3-(2-hydroxy-2-oxoethylamino)butanoic acid	0.818
3	I4G	N-(2-methylpropyl)glycine	0.800
4	8S6	(3r)-3-(oxaloamino)butanoic acid	0.750
5	E79	(3r)-3-[[(1r)-1,2-bis(oxidanyl)-2-oxidanylidene-ethyl]amino]butanoic acid	0.750
6	NLY	N-(4-aminobutyl)glycine	0.727
7	WJZ	Tiopronin	0.727
8	AAC	Acetylamino-acetic acid	0.700
9	C9K	2-[[(2~{S})-2-azanylpropyl]amino]ethanol	0.700
10	IPG	N-isopropyl glycine	0.700
11	J9X	2-(ethylamino)-2-oxidanylidene-ethanoic acid	0.700