Widely used in peptide synthesis, this compound serves as a protected amino acid derivative, enabling selective coupling reactions in solid-phase and solution-phase peptide assembly. The Fmoc group provides base-labile protection for the amine functionality, allowing orthogonal deprotection in the presence of other protecting groups. Its alkenyl side chain offers a site for further functionalization, such as cross-metathesis or click chemistry, making it valuable for introducing specific modifications in peptide chains. Commonly employed in the preparation of structured peptides, it supports the development of bioactive molecules, peptide conjugates, and peptidomimetics used in pharmaceutical research and drug design.