2D-NMR structure elucidation of a procyanidin from Musanga cecropioides

被引：0
|
作者：
Franck, U
Neszmélyi, A
Wagner, H
机构：
[1] Univ Munich, Inst Pharmaceut Biol, D-81377 Munich, Germany
[2] Hungarian Acad Sci, Cent Res Inst Chem, H-1025 Budapest, Hungary
来源：
ACH-MODELS IN CHEMISTRY | 1999年 / 136卷 / 04期
关键词：
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Structure elucidation by extensive NMR (H-1, C-13, H-1-H-1 COSY, HMQC and HMBC) and a complete and unambiguous assignment of the spectra of peracetylated procyanidin BZ (epicatechin(4 beta-->8)-epicatechin) isolated from Musanga cecropioides leaves is presented for the first time. The evidence for the site of condensation between the interflavan units was provided by the HMBC method. Molecular modelling was performed by Alchemy III in order to find conformations in solution.
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页码：511 / 517
页数：7
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