Two ellagitannins from Punica granatum heartwood.
In the course of studies on polyphenol metabolism in Punica granatum heartwood two new ellagitannins, diellagic acid rhamnosyl (1-->4) glucopyranoside and 5-O-galloylpunicacortein D were isolated and characterized together with four known tannin metabolites, punicacortein D, punicalin, punicalagin and 2-O-galloylpunicalin. Structures of the isolated compounds were established by chromatography, chemical degradation, UV and 1D/ 2D 1H/13C NMR spectroscopy.
El-Toumy
Sayed A A
SA
Institut für Pharmazie, Pharmazeutische Biologie, Universität Leipzig, Johannisallee 21-23, D-04103, Leipzig, Germany.
Rauwald
Hans W
HW
D004610:Ellagic Acid / Q000031:analogs & derivatives* / Q000737:chemistry* / Q000302:isolation & purification*; D047348:Hydrolyzable Tannins; D029561:Lythraceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D035261:Plant Components, Aerial / Q000737:chemistry; D013634:Tannins / Q000737:chemistry* / Q000302:isolation & purification*
C473719:5-O-galloylpunicacortein D; D047348:Hydrolyzable Tannins; D013634:Tannins; C473718:diellagic acid rhamnosyl (1-4) glucopyranoside; D004610:Ellagic Acid