Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in the preparation of active pharmaceutical ingredients (APIs) targeting tyrosine kinases and other signaling enzymes involved in tumor growth. Its structure allows for selective modification, enabling optimization of drug potency and selectivity. Commonly employed in research and industrial settings for the production of antineoplastic agents and in medicinal chemistry for structure-activity relationship (SAR) studies.