- Extracts and glabretal-type triterpenoids from the root bark of Dictamnus dasycarpus and its use

摘要

The present invention relates to four kinds of novel glabeletal-type triterpenoid compounds separated from them and their immunosuppressive compositions containing them as an active ingredient. According to the present invention, it is possible to provide a composition having an excellent immunosuppressive effect with few side effects, thereby providing a composition for prevention and treatment of diseases caused by immune hyperresponsiveness such as organ rejection, autoimmune disease, allergy, It can also be used as an additive.