N-Fmoc-3-(2-furyl)-D-alanine is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a protected amino acid derivative, where the Fmoc group acts as a temporary protecting group for the amine functionality. This allows for the sequential addition of amino acids to build peptides with high precision and efficiency. The furyl group in its side chain can introduce specific structural or functional properties into the peptide, making it valuable in designing peptides with unique characteristics for research in biochemistry, drug development, and material science. Its application is crucial in creating custom peptides for studying protein interactions, developing therapeutic agents, and exploring novel biomaterials.