Used as a key intermediate in the synthesis of pharmaceutical agents, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in medicinal chemistry due to its ability to mimic purine bases, enabling interactions with enzyme active sites. Commonly employed in the preparation of antitumor, antiviral, and anti-inflammatory compounds. Its structure supports derivatization at multiple positions, facilitating optimization of biological activity and pharmacokinetic properties in drug design.