This compound is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a building block for constructing peptides with proline-rich sequences, which are often found in structural proteins and bioactive peptides. The Fmoc (fluorenylmethyloxycarbonyl) protecting group ensures selective deprotection during synthesis, allowing for precise control over the peptide chain assembly. Its application is common in research and development of pharmaceuticals, where proline-rich peptides play a role in drug design, such as in inhibitors or modulators of protein-protein interactions. Additionally, it is utilized in studying collagen-like peptides and other structural motifs in biochemistry and materials science.