Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of bioactive molecules and drug candidates. Its protected piperazine structure makes it valuable in medicinal chemistry for constructing complex amines. Commonly employed in research settings for the preparation of kinase inhibitors, receptor antagonists, and other therapeutic agents. The tert-butyloxycarbonyl (Boc) protection allows for selective reactivity, enabling controlled stepwise synthesis in multi-stage reactions. Frequently utilized in combinatorial chemistry and high-throughput screening due to its stability and ease of handling.