1	G88	(2s)-2-(phosphonomethyl)pentanedioic acid	1.000
2	2JJ	5-phosphono-D-norvaline	0.733
3	5OY	5-phosphono-L-norvaline	0.733
4	KPA	2-oxo-5-phosphonopentanoic acid	0.733
5	9ON	(2~{S})-2-methylpentanedioic acid	0.714
6	E5N	(2~{R})-2-methylpentanedioic acid	0.714
7	GZ3	(E)-2-methyl-3-phosphonoacrylate	0.714