Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other bioactive molecules. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for constructing complex amines. Commonly employed in solid-phase and solution-phase peptide synthesis due to the stability of the Boc protecting group. Also utilized in the preparation of conformationally constrained scaffolds for structure-activity relationship (SAR) studies.