Used as a key intermediate in the synthesis of Janus kinase (JAK) inhibitors, particularly in the development of pharmaceuticals targeting inflammatory and autoimmune diseases such as rheumatoid arthritis and psoriasis. Its structure enables selective modulation of JAK enzyme activity, contributing to the efficacy of targeted therapies. Also investigated for potential antitumor activity due to its role in signaling pathway inhibition. Employed in research settings for structure-activity relationship (SAR) studies to optimize drug candidates with improved potency and reduced off-target effects.