Studies on the solanaceous plants .35. Steroidal glycosides from Solanum torvum

被引：41

作者：

Yahara, S ^{[1
]}

Yamashita, T ^{[1
]}

Nozawa, N ^{[1
]}

Nohara, T ^{[1
]}

机构：

[1] KUMAMOTO UNIV,FAC PHARMACEUT SCI,KUMAMOTO 862,JAPAN

来源：

PHYTOCHEMISTRY | 1996年 / 43卷 / 05期

关键词：

Solanum torvum; Soloanaceae; torvosides; spirostanols; furostanols; saponins; glycosides;

D O I：

10.1016/S0031-9422(96)00396-2

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：

Seven new steroidal glycosides, named torvosides A-G, were isolated from the aerial parts and from the roots of Solanum torvum. Their structures were characterized as (25S)-26-O-beta-D-glucopyranosyl)-5 alpha-furostan-3 beta,6 alpha,22 xi,26-tetraol 6-O-[alpha-L-rhamnopyranosyl-(1 --> 3)-beta-D-quinovopyuranoside], (25S)-26-O-(beta-D-glucopyranosyl)-22 alpha-methoxy-5 alpha-furostan-3 beta,6 alpha,26-triol 6-O-[beta-D-xylopyranosyl-(1 --> 3)-beta-D-quinovopyranoside], neosolaspigenin 6-O-[alpha-L-rhamnopyranosyl-(1 --> 3)-beta-D-quinovopyranoside], neosolaspigenin 6-O-[beta-D-xylopyranosyl-(1 --> 3)-beta-D-quinovopyranoside], (25S)-26-O-(beta-D-glucopyranosyl)-6 alpha,26-dihydroxy-22 alpha-methoxy -5 alpha-furostan-3-one 6-O-(beta-D-quinovopyranoside), (25S)-26-O-(beta-D-glucopyranosyl)-6 alpha,26-dihydroxy-22 alpha-methoxy-5 alpha-furostan-3-one 6-O-[beta-D-xylopyranosyl-(1 --> 3)-beta-D-quinovopyranoside], and (25S)-26-hydroxy -22 alpha-methoxy-5 alpha-furostan-3-one 26-O-(beta-D-glucopyranoside), respectively. Copyright (C) 1996 Elsevier Science Ltd

引用

页码：1069 / 1074

页数：6

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