Used as an intermediate in organic synthesis, particularly in the pharmaceutical industry for constructing complex molecules. Its protected amine group allows selective reactions at other functional sites without interference. Commonly employed in the development of active pharmaceutical ingredients (APIs) where controlled amine deprotection is required. The tert-butyl ester group offers stability under various reaction conditions and can be removed under mild acidic conditions, making it suitable for multi-step syntheses. Also utilized in the preparation of beta-amino ketone derivatives, which are key motifs in bioactive compounds.