Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) requiring high enantiomeric purity. Its protected hydroxyl and amine functionalities make it ideal for selective reactions in multi-step organic syntheses. Commonly employed in the preparation of beta-amino alcohols and other nitrogen-containing heterocycles. Frequently utilized in medicinal chemistry for constructing constrained ring systems that enhance metabolic stability and target selectivity. Suitable for solid-phase and solution-phase peptide-like assembly due to the Boc-protecting group compatibility with various coupling agents.