Used as a key intermediate in the synthesis of pharmaceutical agents, particularly in the development of kinase inhibitors for cancer treatment. Its structure allows for selective modification, making it valuable in creating compounds that target specific signaling pathways in tumor cells. Commonly employed in research settings to develop potential drugs for lung, breast, and ovarian cancers. Also utilized in the preparation of antiviral and anti-inflammatory agents due to its ability to modulate biological activity when substituted at key positions.