Abstract
Repeated column chromatography of the n-hexane extract of Ficus hirta leaves (Moraceae) led to isolation of a new oleanane triterpene, 3β-hydroxy-11-oxo-olean-12-enyl-3-stearate (1) in addition to three known compounds, taraxerol (2), 3β-acetoxy-11α-methoxy-12-ursene (3) and 3β-acetoxy-11α-hydroxy-12-ursene (4). Their structures were elucidated by spectroscopic methods and by comparison with data reported in the literatures.
Graphical Abstract
Acknowledgments
The authors are grateful to Assoc. Prof. Do Huu Thu for identification of plant samples and MSc Dang Vu Luong for NMR.
Disclosure statement
No potential conflict of interest was reported by the authors.