Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) requiring high enantiomeric purity. Its protected amine and carboxylic acid functionalities make it ideal for peptide coupling and heterocycle formation in drug discovery. Commonly employed in the preparation of protease inhibitors and kinase inhibitors due to its rigid isoindoline scaffold. Also utilized in asymmetric synthesis and as an intermediate in the production of bioactive molecules with central nervous system activity.