1	08P	N-(carboxycarbonyl)-D-cysteine	1.000
2	I78	(2~{R})-2-(carboxycarbonylamino)propanoic acid	0.917
3	UQK	N-oxalyl-alpha-methylalanine	0.846
4	OGA	N-oxalylglycine	0.833
5	SC2	N-acetyl-L-cysteine	0.833
6	40E	Oxo(propan-2-ylamino)acetic acid	0.750
7	AYA	N-acetylalanine	0.750
8	SQ6	2,2'-azanediyldiacetic acid	0.750