Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) where protected amino groups are required. The Boc-protected amine allows for controlled deprotection during multi-step syntheses, enabling selective reactions without interference. The carboxylic acid functionality provides a site for amide bond formation, making it valuable in constructing peptide-like structures. Its chloro substituent offers a handle for further functionalization via cross-coupling reactions such as Suzuki or Buchwald-Hartwig aminations. Commonly employed in research settings for drug discovery, especially in oncology and central nervous system therapies.