1 L3A (2r)-3-[(R)-[(1r)-1-amino-3-methylbutyl](hydroxy)phosphoryl]-2-methylpropanoic acid 1.000 2 2D8 (2r)-3-[(R)-[(1s)-1-aminoethyl](hydroxy)phosphoryl]-2-methylpropanoic acid 0.800 3 LY0 (2r)-3-[(R)-[(1r)-1-aminoethyl](hydroxy)phosphoryl]-2-methylpropanoic acid 0.800 4 LDE (2r)-2-{[(S)-[(1r)-1-amino-3-methylbutyl](hydroxy)phosphoryl]methyl}pentanedioic acid 0.789 5 AEP 3-[(1-amino-2-carboxy-ethyl)-hydroxy-phosphinoyl]-2-methyl-propionic acid 0.765