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A complete 1 H and 13 C NMR data assignment for four drimane sesquiterpenoids isolated from Drimys winterii
Author(s) -
Rodríguez Benjamín,
Zapata Nelson,
Medina Pilar,
Viñuela Elisa
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.1500
Subject(s) - chemistry , stereochemistry , two dimensional nuclear magnetic resonance spectroscopy , carbon 13 nmr , bark (sound) , chemical shift , physics , acoustics
From the bark of Drimys winterii Forst., the drimane derivatives drimendiol, polygodial, isotadeonal and isodrimeninol were isolated. Complete and unambiguous 1 H and 13 C NMR chemical shift assignments of these compounds were achieved by COSY experiments, 13 C/ 1 H shift correlation diagrams and NOE experiments. Isotadeonal and isodrimeninol were found for the first time in this plant species. Copyright © 2004 John Wiley & Sons, Ltd.