4-nitro-N-[(1,1-dimethylethoxy)carbonyl]-L-phenylalanine, N-tert-butoxycarbonyl-p-nitro-L-phenylalanine, BOC-PHE(4'-NO2), Boc-Phe(4-NO2)-OH, Boc-L-4-Nitrophenylalanine, (S)-2-((tert-Butoxycarbonyl)amino)-3-(4-nitrophenyl)propanoic acid, N-(tert-Butoxycarbonyl)-4-nitro-L-phenylalanine, N-(t-butyloxycarbonyl)-4-nitro-D,L-phenylalanine, (S)-2-t-butyloxycarbonylamino-3-(4-nitrophenyl)propionic acid, BOC-P-NITRO-PHE-OH, BOC-L-PHE(4-NO2), BOC-4-NITRO-PHE-OH, BOC-PNO2-L-PHE-OH, BOC-(P-NO2)PHE-OH, BOC-L-4-NITROPHE, Boc-L-4-NO2-Phe-OH, BOC-PHE(P-NO2)-OH, Boc-4-Nitro-L-Phenylalanine, N-BOC-4-nitro-L-phenylalanine