Used primarily as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of selective receptor antagonists and central nervous system agents. Its structure allows for modification to enhance binding affinity and selectivity, making it valuable in medicinal chemistry research. Commonly employed in the preparation of bioactive molecules targeting neurological disorders and inflammatory conditions. Also utilized in the creation of analogs for structure-activity relationship (SAR) studies due to its adaptable piperazine and aromatic framework.