Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of peptide-based drugs. Its protected amine and carboxylic acid groups allow for selective coupling reactions, making it valuable in solid-phase peptide synthesis. The presence of the terminal alkene group enables further modification via cross-coupling reactions or functionalization through hydroboration and epoxidation, useful in creating structurally diverse bioactive molecules. Commonly employed in the preparation of enzyme inhibitors and receptor agonists where stereochemistry plays a critical role in biological activity.