1 RDM (2r)-2-(acetylamino)-4-phenylbutanoic acid 1.000 2 J5V N-(3-phenylprop-2-yn-1-yl)acetamide 0.812 3 CLT 4-phenyl-butanoic acid 0.750 4 3FB (3s)-3-amino-4-phenylbutanoic acid 0.706 5 HMF 2-amino-4-phenyl-butyric acid 0.706 6 HPE Homophenylalanine 0.706 7 SB7 [hydroxy(3-phenylpropyl)amino]methanol 0.706 8 Y9E 2-oxo-4-phenylbutanoic acid 0.706