Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of anticonvulsant drugs and cyclic amino acid derivatives. It serves as a building block in peptide modification, enabling the introduction of hydantoin-like structures that enhance metabolic stability and binding affinity. Also employed in the development of enzyme inhibitors and bioactive molecules due to its rigid heterocyclic scaffold. Its functional groups allow for easy conjugation in drug design and optimization processes.