Used in organic synthesis as a protected amino alcohol building block, particularly in the development of pharmaceuticals and bioactive molecules. The Boc-protected amine and hydroxymethyl functionality allow for selective reactions, enabling stepwise construction of complex structures. Commonly employed in peptidomimetic design and medicinal chemistry for introducing constrained cyclobutane motifs. The ester group can be hydrolyzed to access carboxylic acid derivatives, while the alcohol can be further functionalized via substitution or oxidation. Its rigid cyclobutane core helps modulate conformational flexibility in drug candidates.