Used in pharmaceutical research as a chiral building block for synthesizing peptide-based drugs. Its rigid piperazine backbone and functional groups make it suitable for developing enzyme inhibitors, particularly in neurology and oncology. The compound’s stereochemistry allows selective interaction with biological targets, enhancing drug specificity. Also explored in the design of protease inhibitors due to its ability to mimic dipeptide motifs. Its carboxylic acid and diketopiperazine groups support conjugation and improve pharmacokinetic properties in drug candidates.