Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. Its spirocyclic structure and functional groups allow for selective modifications, making it valuable in medicinal chemistry for constructing complex heterocyclic systems. Commonly employed in research settings for creating analogs in drug discovery programs, especially targeting cancer and inflammatory diseases. The tert-butoxycarbonyl (Boc) group facilitates protection of nitrogen during peptide-like coupling reactions, while the bromo substituent enables further functionalization via cross-coupling reactions such as Suzuki or Buchwald-Hartwig.