TANNINS AND RELATED-COMPOUNDS .102. STRUCTURES OF TERCHEBULIN, AN ELLAGITANNIN HAVING A NOVEL TETRAPHENYLCARBOXYLIC ACID (TERCHEBULIC ACID) MOIETY, AND BIOGENETICALLY RELATED TANNINS FROM TERMINALIA-CHEBULA RETZ

被引：48

作者：

LIN, TC

NONAKA, G

NISHIOKA, I

HO, FC

机构：

[1] KYUSHU UNIV 62, FAC PHARMACEUT SCI, 3-1-1 MAIDASHI, HIGASHI KU, FUKUOKA 812, JAPAN

[2] TAIWAN FORESTRY RES INST, HENG CHUN, TAIWAN

来源：

CHEMICAL & PHARMACEUTICAL BULLETIN | 1990年 / 38卷 / 11期

关键词：

Combretaceae; flavogallonic acid; mylobalan; oxidative phenol coupling; tannin; terchebulic acid; terchebulin; terflavin C; terflavin D; Terminalia chebula;

D O I：

10.1248/cpb.38.3004

中图分类号：

R914 [药物化学];

学科分类号：

100701 ;

摘要：

A chemical examination of mylobalans (the fruits of Terminalia chebula retz., Combretaceae) has led to the isolation and characterization of punicalagin (1), terflavin A (2) and a new ellagitannin named terchebulin (3), which possesses a novel tetraphenylcarboxylic acid (terchebulic acid) moiety. Furthermore, from the leaves of T. chebula, a series of biogenetically related hydrolyzable tannins, terflavins B (7), C (9) and D (10), punicalagin (1) and punicalin (8), have been isolated and structurally elucidated. The concomitant isolation of terflavins A (2) and B (7) provides biogenetic evidence that the terchebulic acid moiety is derived by an oxidative carbon-oxygen coupling of adjacent flavogallonic acid and gallic acid esters. © 1990, The Pharmaceutical Society of Japan. All rights reserved.

引用

页码：3004 / 3008

页数：5

共 18 条

[1] THE METABOLISM OF GALLIC ACID AND HEXAHYDROXYDIPHENIC ACID IN PLANTS .3. ESTERS OF (R)-HEXAHYDROXYDIPHENIC AND (S)-HEXAHYDROXYDIPHENIC ACID AND DEHYDROHEXAHYDROXYDIPHENIC ACID WITH D-GLUCOPYRANOSE (C-1(4) AND RELATED CONFORMATIONS) [J].