Used primarily as a pharmaceutical intermediate in the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of central nervous system (CNS) agents. Its stereochemistry makes it valuable in creating enantiomerically pure drugs, where specific biological activity depends on molecular configuration. It is also employed in the production of certain antipsychotics and antidepressants due to its structural similarity to biologically active piperazine derivatives. Additionally, it serves as a chiral building block in medicinal chemistry for optimizing drug potency and reducing side effects.