Chemical Constituents from Solanum torvum

Aim To investigate the chemical constituents of Solanum torvum Swartz. Methods The compounds were isolated by silica gel, Sephadex LH-20, and Rp-C 18 column chromatography. Their structures were elucidated on the basis of spectral analysis of ESI-MS and NMR. Results Nine known compounds including neochlorogenin 6- O -β-D-quinovopyranoside ( 1 ), neochlorogenin 6- O -β-D-xylopyranosyl-(1→3)β-D-quinovopyranoside ( 2 ), neochlorogenin 6- O -α-L-rhamnopyranosyl-(1→3)-β-D-quinovopyranoside ( 3 ), solagenin 6- O -β-D-quinovopyranoside ( 4 ), solagenin 6- O -α-L-rhamnopyranosyl-(1→3)-β-D-quinovopyranoside ( 5 ), isoquercetin ( 6 ), rutin ( 7 ), kaempferol ( 8 ) and quercetin ( 9 ) were isolated from S. torvum . Conclusion All compounds were isolated from S. torvum for the first time.