Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of biologically active compounds where stereochemistry plays a critical role. Its protected amine group and oxygen-containing heterocycle make it valuable in medicinal chemistry for constructing complex molecules, especially in the design of kinase inhibitors and other therapeutic agents. The Boc-protected group allows for selective deprotection under mild conditions, enabling stepwise assembly in multi-step organic syntheses. Commonly employed in asymmetric synthesis and drug discovery research due to its structural stability and compatibility with various coupling reactions.