Tannins of Stachyurus Species. III. Stachyuranins A, B and C, Three New Complex Tannins from Stachyurus praecox Leaves

Li Han; Tsutomu Hatano; Takuo Okuda; Takashi Yoshida

doi:10.1248/cpb.43.2109

Tannins of Stachyurus Species. III. Stachyuranins A, B and C, Three New Complex Tannins from Stachyurus praecox Leaves

Li Han, Tsutomu Hatano, Takuo Okuda, Takashi Yoshida

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

16 Citations (Scopus)

Abstract

Three new complex tannins, stachyuranins A (1), B (2) and C (3), were isolated from the leaves of Stachyurus praecox (Stachyuraceae), and their structures, each consisting of a catechin or gallocatechin residue and a monomeric hydrolyzable tannin moiety, were assigned. Structures 1 and 2 lack a C-C linkage between glucose C-1 and the aroyl group at glucose 0–2, suggesting that they may be biogenetic precursors of complex tannins with the C-C linkage.

Original language	English
Pages (from-to)	2109-2114
Number of pages	6
Journal	Chemical and Pharmaceutical Bulletin
Volume	43
Issue number	12
DOIs	https://doi.org/10.1248/cpb.43.2109
Publication status	Published - Jan 1 1995

Keywords

Stachyuraceae
Stachyurus praecox
stachyuranin A,B,C
tannin

ASJC Scopus subject areas

Chemistry(all)
Drug Discovery

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10.1248/cpb.43.2109

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abstract = "Three new complex tannins, stachyuranins A (1), B (2) and C (3), were isolated from the leaves of Stachyurus praecox (Stachyuraceae), and their structures, each consisting of a catechin or gallocatechin residue and a monomeric hydrolyzable tannin moiety, were assigned. Structures 1 and 2 lack a C-C linkage between glucose C-1 and the aroyl group at glucose 0–2, suggesting that they may be biogenetic precursors of complex tannins with the C-C linkage.",

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AU - Han, Li

AU - Hatano, Tsutomu

AU - Okuda, Takuo

AU - Yoshida, Takashi

PY - 1995/1/1

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AB - Three new complex tannins, stachyuranins A (1), B (2) and C (3), were isolated from the leaves of Stachyurus praecox (Stachyuraceae), and their structures, each consisting of a catechin or gallocatechin residue and a monomeric hydrolyzable tannin moiety, were assigned. Structures 1 and 2 lack a C-C linkage between glucose C-1 and the aroyl group at glucose 0–2, suggesting that they may be biogenetic precursors of complex tannins with the C-C linkage.

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Tannins of Stachyurus Species. III. Stachyuranins A, B and C, Three New Complex Tannins from Stachyurus praecox Leaves

Abstract

Keywords

ASJC Scopus subject areas

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