Used in pharmaceutical research as a key intermediate in the synthesis of kinase inhibitors, particularly targeting JAK and TYK2 enzymes involved in inflammatory and autoimmune diseases. Its structure supports high selectivity and potency in modulating signaling pathways related to immune response. Commonly employed in the development of small-molecule therapeutics for conditions such as rheumatoid arthritis, psoriasis, and certain cancers. Also utilized in structure-activity relationship (SAR) studies to optimize drug candidates for improved metabolic stability and bioavailability.