© Georg Thieme Verlag Stuttgart · New York
Glyyunnansapogenins G and H: Two New Pentacyclic Triterpenoids of the 18αH-Oleana-9(11),12-diene Type from Glycyrrhiza yunnanensis Roots
05 January 2007 (online)
Two new pentacyclic triterpenoid sapogenins of the 18αH-oleana-9(11),12-diene type named glyyunnansapogenins G and H were isolated from the roots of Glycyrrhiza yunnanensis Cheng f. et L. K. Tai. Their structures were elucidated as 18αH-oleana-9(11),12-diene-3β,21α,29-triol and 18αH-3β,21α-dihydroxyoleana-9(11),12-dien-29-oic acid, respectively, by spectroscopic methods. This is the first report of the occurrence of the 18αH series of oleana-9(11),12-diene compounds in nature.
Glycyrrhiza yunnanensis - 18αH-oleana-9(11),12-dienes - glyyunnansapogenins - structure elucidation