Used as a key chiral building block in the synthesis of pharmaceuticals, particularly in the development of biologically active compounds where stereochemistry plays a critical role. Its fluorinated structure enhances metabolic stability and membrane permeability, making it valuable in medicinal chemistry. Commonly employed in the preparation of protease inhibitors, kinase inhibitors, and central nervous system agents. The Boc-protecting group allows for selective amine reactivity during multi-step syntheses, enabling efficient and controlled coupling reactions in drug discovery programs.