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Boc-D-Glutamine L-Alanyl-L-Glutamine L-Glutamine L-Phenylalanine benzyl ester hydrochloride H-PHE-TRP-OH H-PHE-LEU-OH H-PHE-PHE-OME HCL Methyl L-phenylalaninate hydrochloride H-PHE-OBZL P-TOSYLATE (S)-AMINO-(4-CHLORO-PHENYL)-ACETIC ACID