Boc-D-Phe-Phe is widely used in peptide synthesis as a building block for creating complex peptide structures. It serves as a protected dipeptide, where the Boc (tert-butoxycarbonyl) group safeguards the amino group during the synthesis process. This compound is particularly valuable in the development of peptide-based drugs and bioactive peptides, where precise sequence control is essential. It is also employed in research to study peptide interactions, folding, and stability. Additionally, Boc-D-Phe-Phe is utilized in the production of peptidomimetics, which mimic the structure and function of natural peptides for therapeutic applications. Its chiral nature makes it useful in asymmetric synthesis and the development of enantiomerically pure compounds.