Used in pharmaceutical research as an intermediate in the synthesis of complex indole alkaloids, particularly in the production of vinca alkaloids like vinblastine and vincristine. These compounds are critical in cancer treatment, serving as potent chemotherapeutic agents for leukemia, Hodgkin’s lymphoma, and other malignancies. Its tartrate salt form enhances solubility and stability, facilitating laboratory handling and reaction efficiency in semi-synthetic pathways. Also employed in studies exploring new bioactive derivatives with improved therapeutic profiles.