Nepsilon-Benzyloxycarbonyl-Nalpha-Boc-L-lysine N-succinimidyl ester is a reactant involved in Cellular labeling and tumor MRI as a bimodal lipidic contrast agent, Synthesis of improved peptide prodrugs 5-ALA for photodynamic therapy, Design of high affinity peptide conjugates as markers for small peptide transporter PEPT1 (SLC15A1), Preparation of human growth hormone derivatives containing PEG groups, Enantiodivergent asymmetric cyclization and Solid-phase synthesis of peptide-cationic steroid conjugates for antibacterial screening.