Fmoc-N-(1-Boc-4-piperidyl)glycine is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a building block for introducing the piperidine moiety into peptide chains, which can be crucial for modifying the peptide's structure and function. The Fmoc group protects the amino group during synthesis, while the Boc group protects the piperidine nitrogen, ensuring selective reactions. This compound is valuable in the development of peptides with potential applications in pharmaceuticals, such as drug discovery and the creation of bioactive peptides. Its use allows for precise control over peptide sequence and structure, enabling researchers to design molecules with specific biological activities.