Iridal glycosides from Iris spuria (Zeal), cultivated in Egypt

被引：18

作者：

Marner, FJ

Singab, ANB

Al-Azizi, MM

El-Emary, NA

Schäfer, M

机构：

[1] Univ Cologne, Inst Biochem, D-50674 Cologne, Germany

[2] Univ Cologne, Inst Organ Chem, D-50939 Cologne, Germany

[3] Assiut Univ, Fac Pharm, Dept Pharmacognosy, Assiut, Egypt

[4] Ain Shams Univ, Fac Pharm, Dept Pharmacognosy, Cairo, Egypt

来源：

PHYTOCHEMISTRY | 2002年 / 60卷 / 03期

关键词：

Iris spuria (Zeal); Iridaceae; iridals; iridal glycosides; triterpenoids;

D O I：

10.1016/S0031-9422(02)00110-3

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：

Fractionation of a methanol extract obtained from rhizomes of I. spuria (Zeal) resulted in the isolation of seven iridalglycosides 5a,b, 6a-c, 7, 8. The structures of the aglycons and the position of the glycosidic bonds were elucidated by spectroscopic analyses. The nature of the sugar moieties was determined as glucose from capillary GC and GC/MS analyses after hydrolysis of the compounds, reduction and derivatization of the resulting hexitols in comparison to authentic standards. Methylation analysis revealed the glycosyl-linkage composition. The number and position of the glucose residues was determined by ozonolysis. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：301 / 307

页数：7

共 9 条

[1] RAPID DETERMINATION OF OLEFIN POSITION IN ORGANIC COMPOUNDS IN MICROGRAM RANGE BY OZONOLYSIS AND GAS CHROMATOGRAPHY [J].