trithiophosphoric acid tris-(4-nitro-phenyl ester)
N-(Benzyloxycarbonyl)glycine
para-nitrobenzenethiol
Z-Gly-(L)-Phe
N-(N-benzyloxycarbonyl-glycyl)-DL-thiophenylalanine S-(4-nitro-phenyl ester)
N-(N-benzyloxycarbonyl-glycyl)-L-thiophenylalanine S-(4-nitro-phenyl ester)
Cbz-Gly-L-Leu-Gly
N-benzyloxycarbonyl-glycyl=>phenylalanyl=>glycine ; N-benzyloxycarbonyl-glycyl=>DL-phenylalanyl=>glycine