The molecular structure of maniladiol from Baccharis salicina

被引：17

作者：

Quijano, L

Rios, T

Fronczek, FR

Fischer, NH

机构：

[1] Univ Nacl Autonoma Mexico, Inst Quim, Mexico City 04510, DF, Mexico

[2] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA

来源：

PHYTOCHEMISTRY | 1998年 / 49卷 / 07期

关键词：

Baccharis salicina; asteraceae; flavonoid; triterpene; maniladiol; H-1 and C-13 NMR; molecular structure;

D O I：

10.1016/S0031-9422(98)00363-X

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：

From the chloroform extract of Baccharis salicina, maniladiol, oleanolic acid, 5, 7, 3'-trihydroxy-3, 6, 4'-trimethoxyflavone (centaureidin) and 5, 7-dihydroxy-3, 6, 3', 4'-tetramethoxyflavone were isolated. The structure and stereochemistry of maniladiol were confirmed by single crystal X-ray diffraction as olean-12-ene-3 beta,16 beta-diol, which unambiguously established the configuration of the hydroxy! group at C-16 as 16 beta-OH. (C) 1998 Elsevier Science Ltd. All rights reserved.

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页码：2065 / 2068

页数：4

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