Clerodane and 19-norclerodane diterpenoids from the tubers of Dioscorea antaly
- PMID: 20385395
- DOI: 10.1016/j.phytochem.2010.03.014
Clerodane and 19-norclerodane diterpenoids from the tubers of Dioscorea antaly
Abstract
Two clerodane diterpenoids, antadiosbulbins A and B and two 19-norclerodane diterpenes, 8-epidiosbulbins E and G along with the known diosbulbin E as well as nine known phenolics including five phenanthrenes and stilbenes and four flavonoids were isolated from the ethyl acetate soluble part of the methanolic extract of the tubers of Dioscorea antaly, a yam endemic to Madagascar. Structures were determined by analysis of the spectral data, mainly 2D-NMR and mass spectrometry.
Copyright 2010 Elsevier Ltd. All rights reserved.
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