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. 2010 Jun;71(8-9):1007-13.
doi: 10.1016/j.phytochem.2010.03.014. Epub 2010 Apr 10.

Clerodane and 19-norclerodane diterpenoids from the tubers of Dioscorea antaly

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Clerodane and 19-norclerodane diterpenoids from the tubers of Dioscorea antaly

Lolona Rakotobe et al. Phytochemistry. 2010 Jun.

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.

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