Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for constructing complex heterocyclic systems. Commonly employed in coupling reactions such as Suzuki or Buchwald-Hartwig aminations to introduce pyridine and piperazine motifs found in bioactive agents. The BOC-protected piperazine enables controlled deprotection and further derivatization, useful in multi-step synthesis of drug candidates targeting CNS disorders, inflammation, and cancer.