Two triterpenoids from roots of Glycyrrhiza yunnanensis - Zeng, L.; Zhang, R.-Y.; Wang, D.; Lou, Z.-C. (Elsevier)
Two new oleanane triterpenoids, named glyyunnansapogenins C and E, together with the known compound macedonic acid, were isolated from roots of Glycyrrhiza yunnanensis. The structures of glyyunnansapogenins C and E were established as 3β-hydroxy-16-oxo-oleana-11,13(18)-dien-30-oic acid and 3β,21α,24-trihydroxy-oleana-11,13(18)-dien-29-oic acid, respectively, by spectroscopic methods and chemical transformations.
http://linkinghub.elsevier.com/retrieve/pii/0031-9422(90)85285-N
Keywords: W; V