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 in biological activity. Its structure supports the creation of complex molecules in central nervous system agents and enzyme inhibitors. Commonly employed in asymmetric synthesis due to the stability and reactivity of the pyrrolidine ring, facilitating carbon-carbon bond formation. Also utilized in the preparation of intermediates for medicinal chemistry research and drug discovery programs.