(1R,2S,4S)-1-((N,N-dicyclohexylsulfamoyl)methyl)-7,7-dimethylbicyclo[2.2.1]heptan-2-yl (S)-2-azido-3-phenylpropanoate

N-acetyl dehydrophenylalanyl-(S)-phenylalanine

Ac-ΔPhe-(S)-Leu-OH

N-Ac-Δ-Phe-Glu

1-[(E)-2-acetamido-3-phenylprop-2-enoyl]pyrrolidine-2-carboxylic acid