Used as a key intermediate in the synthesis of pharmaceutical agents, particularly in the development of kinase inhibitors for cancer treatment. Its structure allows for selective binding in biological systems, making it valuable in medicinal chemistry research. Commonly employed in the preparation of protease inhibitors and other bioactive molecules due to the reactivity of the amidine group and the halogen substituents. Also utilized in fragment-based drug discovery to build more complex molecules with enhanced potency and selectivity.