This compound is primarily used in peptide synthesis as a protected form of tyrosine. The tert-butyl groups protect the hydroxyl and carboxyl functionalities, preventing unwanted reactions during the peptide chain assembly. It is particularly useful in solid-phase peptide synthesis (SPPS) where selective deprotection is required to build complex peptides. Its application extends to the production of bioactive peptides, pharmaceuticals, and research involving peptide-based drugs. The protection ensures stability and specificity in the synthesis process, making it a valuable reagent in organic and medicinal chemistry.