Structural investigation of resin glycosides from Ipomoea lonchophylla

被引：25

作者：

MacLeod, JK ^{[1
]}

Ward, A ^{[1
]}

Oelrichs, PB ^{[1
]}

机构：

[1] NATL RES CTR ENVIRONM TOXICOL,BRISBANE,QLD 4108,AUSTRALIA

来源：

JOURNAL OF NATURAL PRODUCTS | 1997年 / 60卷 / 05期

关键词：

D O I：

10.1021/np960693q

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

A fraction from Ipomoea lonchophylla, which was toxic to mice, contained an inseparable mixture of resin glycosides with differing numbers of C-5 ester groups on the hexasaccharide chain. After alkaline hydrolysis of the esters, the structure of the major component (1) was elucidated using high-field NMR spectroscopy, mass spectrometry, chemical studies, and comparison with known resin glycosides. Compound 1 was identified as 3,11-dihydroxytetradecanoic acid 11-O-beta-quinovopyranosyl-(1-->2)-beta-glucopyranosyl-(1-->3)-[alpha-rhamnopyranosyl-(1-->4)]-quinovopyranosyl-(1-->2)-beta-glucopyranosyl-(1-->2)-beta-fucopyranoside.

引用

页码：467 / 471

页数：5

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