Used as an intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research targeting kinase inhibitors and other therapeutic agents. The Boc-protected amine and bromopyrazine functionalities allow for selective deprotection and cross-coupling reactions, making it valuable in building complex drug-like molecules. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its ability to introduce substituted piperazine-pyrazine scaffolds into target compounds.