Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceutical compounds. It serves as a building block for constructing complex molecules due to the presence of reactive functional groups—the ketone and the protected piperazine. Commonly employed in medicinal chemistry for developing kinase inhibitors and other bioactive agents. The tert-butyloxycarbonyl (Boc) group allows for selective protection during multi-step syntheses, enabling controlled amine modifications in drug design. Also utilized in the synthesis of protease inhibitors and central nervous system agents.