Used in pharmaceutical research as a key intermediate in the synthesis of kinase inhibitors, particularly in the development of anticancer agents. It serves as a building block for compounds targeting tyrosine kinases involved in tumor growth and signal transduction. Also employed in the design of selective inhibitors for neurological and inflammatory disorders due to its ability to cross the blood-brain barrier and modulate enzyme activity. Its structural similarity to purine bases makes it valuable in creating biologically active molecules with improved metabolic stability and binding affinity.