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Two new dammarane triterpenoids from Kageneckia angustifolia D. Don
Author(s) -
LópezPérez José Luis,
Erazo Silvia,
Delporte Carla,
Negrete Rosa,
Muñoz Orlando,
García Rubén,
Backhouse Nadine,
San Feliciano Arturo
Publication year - 2005
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1656
Subject(s) - dammarane , chemistry , triterpenoid , oleanolic acid , stereochemistry , terpene , two dimensional nuclear magnetic resonance spectroscopy , triterpene , medicine , alternative medicine , pathology
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.