Used in the pharmaceutical industry as an active ingredient in medications for the treatment of autoimmune diseases such as psoriasis and rheumatoid arthritis. It functions as a selective inhibitor of certain immune cell signaling pathways, helping to reduce inflammation and modulate the overactive immune response. Its structure allows for high potency and improved metabolic stability, making it suitable for oral administration. Commonly found in clinical-stage drugs aimed at achieving better safety profiles compared to broader immunosuppressants.