SAPONINS FROM AERIAL PARTS OF ALFALFA (MEDICAGO-SATIVA)

被引：39

作者：

MASSIOT, G ^{[1
]}

LAVAUD, C ^{[1
]}

BESSON, V ^{[1
]}

LEMENOLIVIER, L ^{[1
]}

VANBINST, G ^{[1
]}

机构：

[1] VRIJE UNIV BRUSSELS, FAK WETENSCHAPPEN, B-1050 BRUSSELS, BELGIUM

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 1991年 / 39卷 / 01期

关键词：

D O I：

10.1021/jf00001a014

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The structures of three saponins from the leaves of alfalfa, cultivar Resis, were established as 28-O-[beta-D-xylopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranosyl]medicagenate, 28-O-[beta-D-xylopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranosyl]-3-O-beta-D-glucopyranosyl-medicagenate, and 28-O-[beta-D-xylopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranosyl]-3-O-[beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl]medicagenate; in the North American cultivar Lahontan, two saponins were isolated and their structures determined as 28-O-[beta-D-xylopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranosyl]-3-O-beta-D-glucuronopyranosylmedicagenate and 3-O-[alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranosyl-(1-->2)-beta-D-glucuronopyranosyl]soyasapogenol B. Structural elucidations were performed on peracetylated derivatives of the saponins by using H-1 and C-13 NMR with techniques such as COSY, relayed COSY, HOHAHA, ROESY, HMBC, and HMQC.

引用

页码：78 / 82

页数：5

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