Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and fine chemicals. Its ketoester functionality allows for versatile reactivity, including nucleophilic addition and condensation reactions. Commonly employed in the synthesis of heterocyclic compounds and as a building block for bioactive molecules, such as kinase inhibitors and anti-inflammatory agents. Also utilized in the development of prodrugs due to the presence of the tert-butyl ester group, which can be easily cleaved under physiological conditions.