Abstract
A new diterpenoid named (−)-8β-hydroxypimar-15-en-18-oic acid was isolated, along with (−)-kaur-16-en-19-oic acid, 13,14-dihydrooropheic acid and β-sitosterol, from the bark of Mitrephora tomentosa.
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Acknowledgments
This work was supported by a research grant from the Faculty of Pharmaceutical Sciences, Chulalongkorn University. BS is grateful to the Thailand Research Fund for a 2000 RGJ scholarship.