Used as an intermediate in pharmaceutical synthesis, particularly in Suzuki-Miyaura cross-coupling reactions to form biaryl compounds. Its boronate ester group enables efficient carbon-carbon bond formation, making it valuable in the development of active pharmaceutical ingredients (APIs). Commonly applied in the preparation of kinase inhibitors and other nitrogen-containing heterocyclic drug candidates. The Boc-protected piperazine moiety allows for selective deprotection and further functionalization, supporting stepwise assembly of complex molecules in medicinal chemistry research.