Used primarily in peptide synthesis, it serves as a protected form of serine, ensuring selective reactivity during the formation of peptide bonds. The tert-butyl group protects the hydroxyl side chain, preventing unwanted reactions, while the N-methylation enhances stability and influences the peptide's conformational properties. This compound is valuable in the development of pharmaceuticals, particularly in creating peptide-based drugs where precise amino acid incorporation is crucial. It is also employed in research to study peptide structure-activity relationships, aiding in the design of bioactive peptides with improved efficacy and selectivity.