In 2018, Baricitinib was approved by the Food and Drig Administration (FDA) for the treatment of rheumatoid arthritis. Baricitinib exerts its action by targeting Janus kinases (JAK). In this study, we describe the necessary steps for preparing the drug using two alternative routes.
Keywords: FDA; Janus kinases; approved drugs; baricitinib; protein kinase inhibitor; rheumatoid arthritis.