Used as an intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research. It serves as a protected amine derivative, enabling selective reactions in multi-step organic syntheses. Commonly employed in the development of kinase inhibitors and other drug candidates due to its stability and favorable reactivity profile. The tert-butyl carbamate (Boc) group allows for easy deprotection under mild acidic conditions, making it valuable in peptide-like and heterocyclic chemistry. Its rigid oxazine backbone supports conformational control, enhancing selectivity in target binding during medicinal chemistry optimization.