Used as an intermediate in the synthesis of biologically active compounds, particularly in the development of kinase inhibitors and other pharmaceutical agents targeting cancer and inflammatory diseases. Its structure supports the formation of complex heterocyclic systems, making it valuable in medicinal chemistry for constructing drug candidates with high selectivity and potency. Commonly employed in solid-phase and solution-phase peptide-like synthesis due to its stable imidazolidinone core and functional handles for further derivatization.