Used in pharmaceutical research as a key intermediate in the synthesis of kinase inhibitors, particularly those targeting JAK (Janus kinase) and TYK2 enzymes involved in inflammatory and autoimmune diseases. Its structure supports binding selectivity, making it valuable in developing treatments for conditions like psoriasis, rheumatoid arthritis, and certain cancers. Also explored in the design of CNS-active agents due to its ability to cross the blood-brain barrier.