Planta Med 1991; 57(2): 165-168
DOI: 10.1055/s-2006-960057

© 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

Lu Zeng, Ru-Yi Zhang, Dong Wang, Zhi-Liang Zhang, Zhi-Cen Lou
  • School of Pharmaceutical Sciences, Beijing Medical University, Beijing 100083, People's Republic of China
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Publication History


Publication Date:
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.