Used as an intermediate in organic synthesis, particularly in the development of pharmaceuticals and fine chemicals. Its amine functionality allows for further derivatization, making it valuable in the construction of complex molecules. The spirocyclic structure provides rigidity and stability, which can enhance selectivity and potency in bioactive compounds. Commonly employed in the synthesis of protease inhibitors and other therapeutic agents where structural constraint is beneficial. Also utilized in the preparation of chiral ligands and catalysts for asymmetric synthesis.