Used as a key chiral intermediate in the synthesis of pharmaceutical agents, particularly in the development of protease inhibitors and other bioactive molecules. Its structure supports asymmetric synthesis, enabling the selective formation of stereoisomers important for drug efficacy. The Boc-protected amine group allows for controlled deprotection and further functionalization, making it valuable in multi-step organic syntheses. Commonly employed in medicinal chemistry for building complex indene-based scaffolds with biological activity.