Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. Its nitrile and carbonyl functionalities allow for further chemical modifications, making it valuable in constructing complex heterocyclic systems. Commonly employed in medicinal chemistry for building blocks in drug discovery programs, especially in the design of protease inhibitors and central nervous system agents. Also utilized in solid-phase and combinatorial chemistry due to its stability and reactivity profile.