Two new resveratrol (=5-[(1E)-2-(4-hydroxyphenyl)ethenyl]benzene-1,3-diol) tetramers with a tetrahydrofuran ring from Dipterocarpus grandiflorus

被引：28

作者：

Ito, T

Tanaka, T

Iinuma, M

Nakaya, K

Takahashi, Y

Sawa, R

Murata, J

Darnaedi, D

机构：

[1] Gifu Prefectual Inst Hlth & Environm Sci, Kakamigahara 5040838, Japan

[2] Gifu Pharmaceut Univ, Gifu 5028585, Japan

[3] Microbial Chem Res, Shinagawa Ku, Tokyo 1410021, Japan

[4] Univ Tokyo, Grad Sch Sci, Bot Gardens, Bunkyo Ku, Tokyo 1120001, Japan

[5] Indonesian Inst Sci, Bogor 16122, Indonesia

来源：

HELVETICA CHIMICA ACTA | 2004年 / 87卷 / 02期

关键词：

D O I：

10.1002/hlca.200490046

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two new stilbene tetramers, grandiphenols A (1) and B (2), along with ten known stilbene oligomers and bergenin were isolated from the stem of Dipterocarpus grandiflorus. The structures of 1 and 2 composed of four resveratrol (= 5-[(1E)-2-(4-hydroxyphenyl)ethenyl] benzene-1,3-diol) units had eight asymmetric C-atoms in the partial structures of a tetrahydrofuran and two dihydrobenzofuran moieties. Detailed spectroscopic analyses, especially HMBC and NOESY experiments, allowed to differentiate the configurations of 1 and 2.

引用

页码：479 / 495

页数：17

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