Used in peptide synthesis and medicinal chemistry as a chiral building block, particularly in the preparation of bioactive molecules containing D-tryptophan derivatives. The Boc (tert-butoxycarbonyl) group acts as a protecting group for the amine, allowing selective reaction at other sites during multi-step syntheses. Commonly employed in the development of pharmaceuticals and enzyme inhibitors where stereochemistry plays a critical role in biological activity. Its indole moiety enables interactions with biological targets such as receptors and enzymes, making it valuable in drug discovery research.