1.
J Asian Nat Prod Res
; 12(12): 1061-8, 2010 Dec.
Artigo
em Inglês
| MEDLINE
| ID: mdl-21128147
RESUMO
A new triterpenoid saponin, clematomandshurica saponin E, together with four known saponins were isolated and characterized from the roots and rhizomes of Clematis mandshurica (Ranunculaceae), a commonly used traditional Chinese medicine with anti-inflammatory and antirheumatoid activities. On the basis of spectroscopic analysis, including HR-ESI-MS, IR, 1D, and 2D NMR spectral data and hydrolysis followed by chromatographic analysis, the structure of the new triterpenoid saponin was elucidated as 3-O-α-L-rhamnopyranosyl-(1 â 6)-ß-D-glucopyranosyl-(1 â 4)-ß-D-glucopyranosyl-(1 â 4)-ß-D-ribopyranosyl-(1 â 3)-α-L-rhamnopyranosyl-(1 â 2)-α-L-arabinopyranosyl oleanolic acid 28-O-ß-D-glucopyranosyl-(1 â 6)-ß-D-glucopyranoside.