Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of protease inhibitors and kinase inhibitors. Its structure supports binding to enzyme active sites, making it valuable in drug discovery for cancer, antiviral therapies, and inflammatory diseases. The amidine group enhances hydrogen bonding and electrostatic interactions, improving target selectivity and potency. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies to optimize drug candidates.