Prenylated flavonoids, monoterpenoid furanocoumarins and other constituents from the twigs of Dorstenia elliptica (Moraceae)

被引：30

作者：

Abegaz, BM

Ngadjui, BT

Folefoc, GN

Fotso, S

Ambassa, P

Bezabih, M

Dongo, E

Rise, F

Petersen, D

机构：

[1] Univ Botswana, Dept Chem, Gaborone, Botswana

[2] Univ Oslo, Dept Chem, NO-0315 Oslo, Norway

[3] Univ Yaounde I, Dept Organ Chem, Yaounde, Cameroon

来源：

PHYTOCHEMISTRY | 2004年 / 65卷 / 02期

关键词：

Dorstenia elliptica; Moraceae; twigs; isolation; 6(1,1-dimethylallyl)-7,4 '-dihydroxylflavan; monoterpenoid furanocoumarins;

D O I：

10.1016/j.phytochem.2003.10.028

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：

A monoprenylated flavan and two monoterpenoid substituted furanocoumarins were isolated from the twigs of Dorstenia elliptica along with 3-(3,3-dimethylallyl)-4,2',4'-trihydroxylchalcone, psoralen, bergapten, O-[3-(2,2-dimethyl-3-oxo-2H-furan-5-yl)butyl]bergaptol, beta-sitosterol and its beta-D-glucopyranoside. The structure of the flavan was determined as 6(1,1-dimethylallyl)-7,4'-dihydroxylflavan and the monoterpenoid substituted furanocoumarins were assigned as O-[3-(2,2-dimethyl-3-oxo-2H-furan-5-yl)-3-hydroxybutyl]-bergaptol and O-[2-(5-hydroxy-2,6,6-trimethyl-3-oxo-2H-pyran-2-yl)ethyl]bergaptol, respectively, using spectroscopic analysis, especially, 2D NMR spectra. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：221 / 226

页数：6

共 13 条

[1] Prenylated chalcones and flavones from the leaves of Dorstenia kameruniana [J].