Complete 1H and 13C NMR assignments of two phytosterols from roots of Piper nigrum

被引：24

作者：

Wei, K

Li, W

Koike, K

Pei, YP

Chen, YJ

Nikaido, T

机构：

[1] Toho Univ, Fac Pharmaceut Sci, Funabashi, Chiba 2748510, Japan

[2] Shenyang Pharmaceut Univ, Sch Chinese Tradit med, Shenyang 110016, Peoples R China

来源：

MAGNETIC RESONANCE IN CHEMISTRY | 2004年 / 42卷 / 03期

关键词：

NMR; H-1; C-13; stereochemistry; stigmastane-3,6-dione; stigmast-4-ene-3,6-dione; Piper nigrium; Piperaceae;

D O I：

10.1002/mrc.1347

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using modem NMR techniques, including DQF-COSY, NOESY, HETCOR and HMBC, the full assignments of all H-1 and C-13 chemical shifts were made for stigmastane-3,6-dione and stigmast-4-ene-3,6-dione, isolated from the roots of Piper nigrum (Piperaceae). Their stereochemistry was resolved by a combination of 2D NOESY data and analysis of coupling constants. The two compounds were isolated from the genus Piper for the first time. Copyright (C) 2004 John Wiley Sons, Ltd.

引用

页码：355 / 359

页数：5

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