Used in solid-phase peptide synthesis as a protected dipeptide building block, enabling controlled assembly of complex peptides. The Fmoc group provides temporary N-terminal protection that is easily removed under mild basic conditions, allowing stepwise elongation. Proline residues introduce structural rigidity due to their cyclic structure, making this compound valuable for synthesizing peptides with defined turns or helical motifs. Commonly applied in research settings for developing bioactive peptides, enzyme substrates, and peptidomimetics. Its use supports the preparation of peptide libraries for drug discovery and molecular probes in biochemical studies.