N-Cbz-L-histidine Z-HIS-NHNH2 Z-HIS(BZL)-OH Z-His(Dnp)-OH Z-HIS-NH2 L-Histidine, 1-(2,4-dinitrophenyl)-N-[(phenylMethoxy)carbonyl]- Z-His(Trt)-OH NA-CBZ-N-IM-BENZYL-L-HISTIDINE L-Histidine, 1-(4-nitrophenyl)-N-[(phenylmethoxy)carbonyl]- Methyl-DL-serine hydrochloride BOC-(2R, 2S)-GLY[PO(OME)2]-OME ASPARTIC ACID-OME N-Boc-4-oxo-L-Proline methyl ester ASPARAGINE-OME HCL ASPARTIC ACID(OME)-OH HCL ASPARTIC ACID(OME)-OME HCL BETA-ALANINE-OME HCL BENZYLOXYCARBONYL-TRP-GLU(OME)-HIS-ASP(OME)-FLUOROMETHYLKETONE