1 GKN 3-[4-[(4-~{tert}-butylphenyl)carbonylamino]phenyl]propanoic acid 1.000 2 M84 3-{4-[(phenylcarbonyl)amino]phenyl}propanoic acid 0.833 3 U3X 4-[(cyclohexylmethyl)amino]-L-phenylalanine 0.760 4 TIL [2-[5-carboxyethyl-2-phenolato(nitrilomethylidyne)][phenolato]]chromium(III) 0.704