Used as an intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research. It serves as a building block for developing drug candidates targeting central nervous system disorders and metabolic diseases. The presence of the fluorophenyl group enhances binding affinity to certain receptors, while the piperazinone core allows for structural diversification. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its ability to mimic peptide motifs and improve metabolic stability.