Used primarily in peptide synthesis as a protected chiral building block. Its main application lies in the preparation of complex peptides and peptidomimetics, where the tert-butoxy and Fmoc groups provide orthogonal protection for carboxylic acid and amine functionalities. The compound enables stepwise assembly of peptide chains with stereochemical control, making it valuable in pharmaceutical research and development, especially in synthesizing bioactive peptides with high purity and defined configuration. Commonly employed in solid-phase peptide synthesis (SPPS), it allows for mild deprotection conditions, preserving sensitive functional groups in the growing peptide chain.