Further constituents from Caralluma negevensis

被引：42

作者：

Bader, A

Braca, A

De Tommasi, N

Morelli, I

机构：

[1] Univ Pisa, Dipartimento Chim Bioorgan & Biofarm, I-56126 Pisa, Italy

[2] Al Zaytoonah Univ Jordan, Fac Pharm, Amman, Jordan

[3] Univ Salerno, Dipartimento Sci Farmaceut, I-84084 Fisciano, SA, Italy

来源：

PHYTOCHEMISTRY | 2003年 / 62卷 / 08期

关键词：

Caralluma negevensis; Asclepiadaceae; megastigmane glycosides; flavone glycosides;

D O I：

10.1016/S0031-9422(02)00678-7

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：

Two mew megastigmane glycosides (1 and 2) and two new flavone glycosides (3 and 4) were isolated from the methanol extract of the whole plant of Carallutna negevensis Zohary (Asclepiadaceae). The structures of the isolated compounds were characterized as (9R)-2beta,9-dihydroxymegastigma-4,7-dien-3-one-9-O-alpha-L-rhamnopyranosyl-(1-->6)-beta-D-glucopyranoside (1), 2beta,9-dihydroxymegastigma-4-en-3-one 9-O-alpha-L-rhamnopyranosyl-(1-->6)-beta-D-glucopyranoside (2), luteolin 3'-O-beta-D-glucopyranoside-4'-O-alpha-L-rhamnopyranosyl-(1-->2)- P-D -glucopyranoside (3), and luteolin 3',4-di-O-beta-D-glucopyranoside (4). The structures of the isolated compounds were established on the basis of spectral evidence and chemical transformation. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：1277 / 1281

页数：5

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