Used as a key intermediate in the synthesis of biologically active pteridine derivatives, particularly in the development of kinase inhibitors and antiviral agents. Its chiral chloro-keto structure allows selective functionalization, making it valuable in medicinal chemistry for constructing complex heterocyclic systems. Commonly employed in asymmetric synthesis to introduce the 7,8-dihydropteridinone scaffold with high stereocontrol, which is relevant in drug discovery programs targeting inflammatory diseases and certain cancers.