1	P5D	(2r)-2-{[(S)-[(1r)-1-amino-2-phenylethyl](hydroxy)phosphoryl]methyl}butanedioic acid	1.000
2	P4D	(2r)-2-{[(S)-[(1r)-1-amino-2-(4-hydroxyphenyl)ethyl](hydroxy)phosphoryl]methyl}butanedioic acid	0.955
3	B88	(2s)-2-{[(S)-[(1r)-1-aminoethyl](hydroxy)phosphoryl]methyl}butanedioic acid	0.714
4	P8D	Phosphinate pseudodipeptide L-ala-D-asp	0.714