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Ellagitannins and complex tannins from Quercus petraea bark
M König1, E Scholz, R Hartmann
1Institut für Pharmazeutische Biologie, Freiburg/B., Germany.
Journal of Natural Products
|October 1, 1994
Abstract:
The ellagitannins 2,3-(S)-hexahydroxydiphenoyl-glucose, pedunculagin, vescalagin, and castalagin; the flavanoellagitannins acutissimin A, acutissimin B, eugenigrandin A, guajavin B, and stenophyllanin C; and the procyanidinoellagitannin mongolicanin have been isolated from the bark of Quercus petraea. The ellagitannin fraction had a weak antisecretory effect.