Tannins of Coriaria japonica A. Gray. III. Structures of Coriariins G, H, I and J

Tsutomu Hatano; Rieko Yoshihara; Shin Hattori; Takuo Okuda; Masao Yoshizaki; Tetsuro Shingu

doi:10.1248/cpb.40.1703

Tannins of Coriaria japonica A. Gray. III. Structures of Coriariins G, H, I and J

Tsutomu Hatano, Rieko Yoshihara, Shin Hattori, Takuo Okuda, Masao Yoshizaki, Tetsuro Shingu

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Four new hydrolyzable tannins, coriariins G, H, I and J, were isolated from the leaf of Coriaria japonica (Coriariaceae). Structures 1,2 and 3, having a sedoheptulose residue, were assigned for coriariins G, H and I, respectively. Structure 4, having a depsidone-forming dehydrodigalloyl group, was assigned for coriariin J, based on the chemical correlation with coriariin B (5). The orientation of the dehydrodigalloyl group in 5 was confirmed by ¹H-¹³C long-range shift-correlation spectroscopy.

Original language	English
Pages (from-to)	1703-1710
Number of pages	8
Journal	Chemical and Pharmaceutical Bulletin
Volume	40
Issue number	7
DOIs	https://doi.org/10.1248/cpb.40.1703
Publication status	Published - 1992

Keywords

Coriaria japonica
Keywords tannin
coriariin G
coriariin H
coriariin I
coriariin J
dehydrodigalloyl group
depsidone
hydrolyzable tannin
sedoheptulose

ASJC Scopus subject areas

Chemistry(all)
Drug Discovery

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10.1248/cpb.40.1703

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title = "Tannins of Coriaria japonica A. Gray. III. Structures of Coriariins G, H, I and J",

abstract = "Four new hydrolyzable tannins, coriariins G, H, I and J, were isolated from the leaf of Coriaria japonica (Coriariaceae). Structures 1,2 and 3, having a sedoheptulose residue, were assigned for coriariins G, H and I, respectively. Structure 4, having a depsidone-forming dehydrodigalloyl group, was assigned for coriariin J, based on the chemical correlation with coriariin B (5). The orientation of the dehydrodigalloyl group in 5 was confirmed by 1H-13C long-range shift-correlation spectroscopy.",

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author = "Tsutomu Hatano and Rieko Yoshihara and Shin Hattori and Takuo Okuda and Masao Yoshizaki and Tetsuro Shingu",

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AU - Hatano, Tsutomu

AU - Yoshihara, Rieko

AU - Hattori, Shin

AU - Okuda, Takuo

AU - Yoshizaki, Masao

AU - Shingu, Tetsuro

PY - 1992

Y1 - 1992

N2 - Four new hydrolyzable tannins, coriariins G, H, I and J, were isolated from the leaf of Coriaria japonica (Coriariaceae). Structures 1,2 and 3, having a sedoheptulose residue, were assigned for coriariins G, H and I, respectively. Structure 4, having a depsidone-forming dehydrodigalloyl group, was assigned for coriariin J, based on the chemical correlation with coriariin B (5). The orientation of the dehydrodigalloyl group in 5 was confirmed by 1H-13C long-range shift-correlation spectroscopy.

AB - Four new hydrolyzable tannins, coriariins G, H, I and J, were isolated from the leaf of Coriaria japonica (Coriariaceae). Structures 1,2 and 3, having a sedoheptulose residue, were assigned for coriariins G, H and I, respectively. Structure 4, having a depsidone-forming dehydrodigalloyl group, was assigned for coriariin J, based on the chemical correlation with coriariin B (5). The orientation of the dehydrodigalloyl group in 5 was confirmed by 1H-13C long-range shift-correlation spectroscopy.

KW - Coriaria japonica

KW - Keywords tannin

KW - coriariin G

KW - coriariin H

KW - coriariin I

KW - coriariin J

KW - dehydrodigalloyl group

KW - depsidone

KW - hydrolyzable tannin

KW - sedoheptulose

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Tannins of Coriaria japonica A. Gray. III. Structures of Coriariins G, H, I and J

Abstract

Keywords

ASJC Scopus subject areas

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