Flavono-ellagitannin

The Flavono-ellagitannins or complex tannins are a class of tannins formed from the complexation of an ellagitannin with a flavonoid. Flavono-ellagitannins can be found in Quercus mongolica var. grosseserrata.^[1]^[2]

Examples

↑ Tannins and related compounds. LXXI. Isolation and characterization of mongolicins A and B, novel flavono-ellagitannins from Quercus mongolica var. grosseserrata. Ishimaru K, Ishimatsu M, Nonaka G, Mihashi K, Iwase Y and Nishioka I, Chemical and pharmaceutical bulletin, 1988, volume 36, no 9, pages 3312-3318, INIST:19798901
↑ Remarkable Biomimetic Chemoselective Aerobic Oxidation of Flavano-Ellagitannins Found in Oak-Aged Wine. Emilie Petit, Dorothée Lefeuvre, Rémi Jacquet, Laurent Pouységu, Denis Deffieux and Stéphane Quideau, Angewandte Chemie International Edition, 25 October 2013, Volume 52, Issue 44, pages 11530–11533, doi:10.1002/anie.201305839
↑ Camelliatannin G at pubchem
↑ Mongolicain A at chemspider.com

Moieties

Lactones

Monomers

C-glycosidic ellagitannins

Dehydroellagitannins (molecules with
dehydrohexahydroxydiphenic acid (DHHDP)

Transformed ellagitannins

molecules with chebulic acid	Chebulagic acid Chebulinic acid

molecules with Elaeocarpusinic acid	Elaeocarpusin Helioscopin B Mallojaponin (1-O-Galloyl-2,4-elaeocarpusinoyl-3,6-(R)-valoneayl-beta-D-glucose)

Oligomers

Dimers: Agrimoniin; Cornusiin E (dimer of tellimagrandin II); Lambertianin A and B; Nobotanin B; Roburin A, B, C and D; Sanguiin H-6

Other

Flavono-ellagitannins (complex tannins)

Types	Acutissimin A and B Epicutissimin A Camelliatannin G Mongolicain A and B Mongolicin A and B Stenophynin A and B

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