This chemical is commonly used in peptide synthesis as a building block. It serves as a protected form of tyrosine, where the tert-butyl group protects the hydroxyl group during the synthesis process. This protection ensures that the tyrosine residue remains intact while other reactions occur, preventing unwanted side reactions. It is particularly valuable in solid-phase peptide synthesis (SPPS), where sequential addition of amino acids is required to construct complex peptides. After the peptide chain is assembled, the protecting group can be removed under specific conditions to yield the final peptide product. Its application is critical in the production of peptides for pharmaceutical research, drug development, and biochemical studies.