1 APL N-(1-benzyl-3,3,3-trifluoro-2,2-dihydroxy-propyl)-acetamide 1.000 2 APF 1,1,1-trifluoro-3-acetamido-4-phenyl butan-2-one(N-acetyl-L-phenylalanyl trifluoromethyl ketone) 0.947 3 5CR N-acetyl-L-phenylalanine 0.789 4 3NF N-acetyl-L-tyrosine 0.750 5 QPH N-formyl-L-phenylalanine 0.737 6 NDF N-(carboxycarbonyl)-D-phenylalanine 0.714 7 7VU (2s)-2-(ethylamino)-3-(4-methylphenyl)propanoic acid 0.700 8 FC0 N-carboxy-L-phenylalanine 0.700 9 ING D-[(amino)carbonyl]phenylalanine 0.700