Used in peptide synthesis as a protected amino acid derivative, it helps in the controlled assembly of peptides by preventing unwanted reactions at the tyrosine site. The tert-butoxycarbonyl (Boc) group acts as a temporary protecting group for the amine functionality, while the ethyl group protects the hydroxyl group of tyrosine. This compound is particularly valuable in solid-phase peptide synthesis (SPPS), where selective deprotection and coupling steps are crucial. It ensures the integrity of the peptide chain during synthesis, making it a key component in the production of peptides for pharmaceutical research, drug development, and biochemical studies.