PROANTHOCYANIDINS FROM STEM BARK OF PAVETTA-OWARIENSIS .3. NMR-STUDY OF ACETYLATED TRIMERIC PROANTHOCYANIDINS POSSESSING A DOUBLY-LINKED STRUCTURE

被引：15

作者：

BALDE, AM

DEBRUYNE, T

PIETERS, L

CLAEYS, M

VANDENBERGHE, D

VLIETINCK, A

WRAY, V

KOLODZIEJ, H

机构：

[1] UNIV INSTELLING ANTWERP, DEPT PHARMACEUT SCI, UNIV 1, B-2610 WILRIJK, BELGIUM

[2] GBF, W-3300 BRAUNSCHWEIG, GERMANY

[3] FREE UNIV BERLIN, INST PHARMAZEUT BIOL, W-1000 BERLIN 33, GERMANY

来源：

JOURNAL OF NATURAL PRODUCTS | 1993年 / 56卷 / 07期

关键词：

D O I：

10.1021/np50097a011

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The H-1- and C-13-nmr chemical shifts of the acetylated trimeric proanthocyanidins of Pavetta owariensis, possessing a doubly-linked structure, have been assigned by 2D and proton decoupling nmr experiments. Pavetannin B4, a new trimer, has been identified as epicatechin-(4beta-->6, 2beta-->O-->7)-ent-epicatechin-(4beta-->8)-epicatechin [5] by spectroscopic analysis of its acetate.

引用

页码：1078 / 1088

页数：11

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[3] PROANTHOCYANIDINS FROM STEM BARK OF PAVETTA-OWARIENSIS .2. DIMERIC AND TRIMERIC PROANTHOCYANIDINS POSSESSING A DOUBLY LINKED STRUCTURE FROM PAVETTA-OWARIENSIS [J].

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