Used in the synthesis of targeted protein degraders, particularly in PROTACs (Proteolysis Targeting Chimeras), where it serves as a key intermediate for linking E3 ligase ligands to target protein binders via bioorthogonal conjugation strategies. Its boronic acid group enables stable attachment to biomolecules or solid supports, while the Boc-protected amine allows for controlled deprotection and further functionalization. Commonly applied in medicinal chemistry for developing cancer therapeutics and in bioconjugation for diagnostic probes. Also utilized in Suzuki-Miyaura cross-coupling reactions during the preparation of biaryl-containing drug candidates.