Boc-3,3-diphenyl-D-alanine is widely used in peptide synthesis as a protected amino acid derivative. Its Boc (tert-butoxycarbonyl) group serves as a protective group for the amine functionality, preventing unwanted reactions during peptide chain assembly. This compound is particularly valuable in the synthesis of complex peptides and proteins, where precise control over amino acid incorporation is essential. It is also utilized in the development of peptidomimetics and bioactive peptides, contributing to research in drug discovery and development. Additionally, it plays a role in the study of enzyme-substrate interactions and the design of enzyme inhibitors.