Used as a chiral building block in peptide synthesis, particularly in the development of pharmaceuticals where stereochemistry plays a critical role. Its structure allows for selective coupling in solid-phase peptide synthesis, making it valuable in creating enantiomerically pure compounds. The presence of the fluorenylmethyloxycarbonyl (Fmoc) protecting group enables controlled deprotection under mild basic conditions, facilitating stepwise assembly of complex peptides. Commonly applied in research settings for synthesizing bioactive molecules and drug candidates requiring high optical purity.