Steroidal glycosides from Solanum torvum

Phytochemistry
1996.0

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-quinovopyranoside], (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 (25S)-26-hydroxy-22α-methoxy-5α-furostan-3-one 26-O-(β-D-glucopyranoside), respectively.

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