A TRIMERIC PROPELARGONIDIN FROM STEM BARK OF HEISTERIA-PALLIDA

被引：7

作者：

DIRSCH, V

NESZMELYI, A

WAGNER, H

机构：

[1] UNIV MUNICH,INST PHARMACEUT BIOL,KARLSTR 29,W-8000 MUNICH 2,GERMANY

[2] HUNGARIAN ACAD SCI,CENT RES INST CHEM,H-1025 BUDAPEST,HUNGARY

来源：

PHYTOCHEMISTRY | 1993年 / 34卷 / 01期

关键词：

HEISTERIA-PALLIDA; OLACACEAE; STRUCTURAL DETERMINATION; TRIMERIC PROPELARGONIDIN; EPIAFZELECHIN-(4-BETA-]8)-EPIAFZELECHIN-(4-BETA-]8)-4'-O-METHYL-(-)-EPIGALLOCATECHIN; C-13; NMR;

D O I：

10.1016/S0031-9422(00)90822-7

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Besides the known ourateacatechin [4'-O-methyl-(-)-epigallocatechin] and ouratea-proanthocyanidin A [epiafzelechin-(4beta-->8)-4'-O-methyl-(-)-epigallocatechin], a new trimeric proanthocyanidin, epiafzelechin-(4beta-->8)-epiafzelechin-(4beta-->8)-4'-O-methyl-(-)-epigallocatechin (trimeric propelargonidin) was isolated from the stem bark of Heisteria pallida. The structure was elucidated by a combination of partial and complete acid hydrolysis, acid-catalysed degradation with toluene-alpha-thiol, FAB-mass spectrometry and C-13 NMR spectroscopy.

引用

页码：291 / 293

页数：3

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