Two new dammarane triterpenoids from Kageneckia angustifolia D. Don
✍ Scribed by José Luis López-Pérez; Silvia Erazo; Carla Delporte; Rosa Negrete; Orlando Muñoz; Rubén García; Nadine Backhouse; Arturo San Feliciano
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 154 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.1656
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✦ Synopsis
Abstract
Two new dammarane triterpenoids, 20__R__,21‐epoxydammar‐24‐ene‐3,23‐dione and 20__R__,21‐epoxy‐3β‐hydroxydammar‐24‐ene‐23‐one have been isolated from the aerial parts of Kageneckia angustifolia D. Don, Rosaceae, along with the previously reported triterpenoids oleanolic acid and 3β‐(β‐D‐glucosyloxy)‐16α,23α‐epoxycucurbita‐5,24‐dien‐11‐one and the phenolic prunasin. The structures of these compounds were established by MS, 1D‐ and 2D‐NMR experiments, and the structure of the new compounds were confirmed by X‐ray diffraction analysis. Copyright © 2005 John Wiley & Sons, Ltd.