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Proanthocyanidins ofPolygonum coriarium. IV. Structures of proanthocyanidins T3 and T4

descriptionPublicationkeyboard_double_arrow_right Article 01 Sep 1997 English Publisher:Springer Science and Business Media LLCJournal:Chemistry of Natural Compounds, volume 33, pages 548-553 (issn: 0009-3130, eissn: 1573-8388,

Authors: N. D. Abdullaev; A. D. Vdovin; B. M. Keneshov; A. A. Nishanov; Z. A. Kuliev;

doi: 10.1007/bf02254802

Proanthocyanidins ofPolygonum coriarium. IV. Structures of proanthocyanidins T3 and T4

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Abstract

Two oligomeric proanthocyanidins have been isolated from the roots ofPolygonum coriarium. By a study of their physical properties and spectral characteristics and analysis of the results of chemical transformations, the chemical structures of these compounds have been established as: (−)-epicatechin-77[O-β-D-glucopyranosyl]3\(\xleftarrow{6}\) O-²-D-glucopyranosyl\(\xleftarrow{6}\)(m-trigallolyl)-[(4β-6)-(−)-epigallocatechin]2-(4β-6)-(−)-epigallocatechin—T3; and (−)-epicatechin-3-O-galloyl-7-[O-β-D-glucopyranosyl]3←O-β-D-glucopyranosyl\(\xleftarrow{6}\)galloyl-[(4β-6)-(−)-epicatechin]4-(4β-6)-(−)-epigallocatechin — T4.

Related Organizations

Osh State University
Kyrgyzstan
Yunusov Institute of the Chemistry of Plant Substances
Uzbekistan
Academy of Sciences Republic of Uzbekistan
Uzbekistan

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