2,3-Indolobetulin is a pentacyclic triterpenoid and derivative of betulin .1It has been used in the synthesis of α-glucosidase inhibitors.
1.Khusnutdinova, E.F., Smirnova, I.E., Kazakova, O.B., et al.Synthesis and evaluation of 2,3-indolotriterpenoids as new α-glucosidase inhibitorsMed. Chem. Res.262732-2742(2017)