Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of bioactive molecules and drug candidates. Its cyclic ester structure makes it valuable for constructing complex organic frameworks, especially in medicinal chemistry for modifying solubility and metabolic stability. Commonly employed in the preparation of prodrugs and enzyme inhibitors due to its ability to mimic natural substrates. Also utilized in the design of novel heterocyclic compounds for research in central nervous system agents and anti-inflammatory drugs.