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 medicinal chemistry due to its structural similarity to purine bases, enabling interactions with biological targets such as enzymes and receptors. Its scaffold is often found in compounds with antiviral, anti-inflammatory, and antitumor activities. Commonly employed in research settings to design and optimize drug candidates targeting tyrosine kinases and other signaling proteins involved in disease pathways.