Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of central nervous system agents and anti-inflammatory drugs. Its structure allows for functionalization at multiple sites, making it valuable in medicinal chemistry for constructing heterocyclic scaffolds. Commonly employed in research settings to prepare benzoxazine derivatives with potential biological activity, including kinase inhibitors and antimicrobial agents. Also utilized in the preparation of agrochemicals and specialty polymers due to its reactive lactam and lactone moieties.