Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the preparation of β-lactam antibiotics and other biologically active compounds. Its structure allows for functionalization at multiple sites, making it valuable in medicinal chemistry for building heterocyclic scaffolds. It is also employed in the development of agrochemicals and as a building block in combinatorial chemistry for drug discovery. The hydroxyl group enables easy derivatization, such as esterification or ether formation, while the isoxazole ring contributes metabolic stability and polarity to final products.