Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where stereochemistry plays a critical role. Its protected amine and functionalized pyrrolidine ring make it valuable in peptidomimetic chemistry and the construction of nitrogen-containing heterocycles. Commonly employed in medicinal chemistry for optimizing drug candidates targeting central nervous system disorders and metabolic diseases. Also utilized in asymmetric synthesis to introduce enantiomerically pure fragments into complex molecules.