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Steroidal glycosides fromSolanum torvum

Authors
Journal
Phytochemistry
0031-9422
Publisher
Elsevier
Publication Date
Volume
43
Issue
5
Identifiers
DOI: 10.1016/s0031-9422(96)00396-2

Abstract

Abstract 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-β- d-glucopyranosyl )-5α- furostan-3β,6α,22ξ,26- tetraol 6-O-[α- l-rhamnopyranosyl -(1 → 3)-β- d-quinovopyuranoside ] , (25S)-26-O-(β- d-glucopyranosyl )-22α- methoxy-5α- furostan-3β,6α,26- triol 6-O-[β- d-xylopyranosyl -(1 → 3)-β- d-quinovopyranoside ] , neosolaspigenin 6-O-[α- l-rhamnopyranosyl -(1 → 3)-β- d-quinovopyranoside ] , neosolaspigenin 6-O-[β- d-xylopyranosyl -(1 → 3)-β- d-quinovopyranoside ] , (25S)-26-O-(β- d - glucopyranosyl)-6α,26- dihydroxy-22α- methoxy-5α- furostan-3- one 6-O-(β- d - quinovopyranoside) , (25S)-26-O-(β- d - glucopyranosyl)-6α,26- dihydroxy-22α- methoxy-5α- furostan-3- one 6-O-[β- d - xylopyranosyl-(1 → 3)-β- d - quinovopyranoside] , and (25 S)-26-hydroxy-22 α-methoxy-5 α-furostan-3-one 26-O-(β- d - glucopyranoside) , respectively.

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