Used in pharmaceutical research as a key intermediate in the synthesis of potent kinase inhibitors, particularly targeting BTK (Bruton's tyrosine kinase) for the treatment of autoimmune diseases and certain cancers. Its structural features enable high selectivity and binding affinity to the target enzyme, making it valuable in developing oral therapeutics with improved metabolic stability. Also explored in prodrug strategies due to its amide and sulfur-containing functionalities, which can be modified to enhance bioavailability and pharmacokinetic profiles.