首页|Structure Elucidation of Two Triterpenoid Saponins from Leaves of Schima superba Gardn. et Champ
Structure Elucidation of Two Triterpenoid Saponins from Leaves of Schima superba Gardn. et Champ
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
Two new oleanane-type triterpenoid saponins with two angeloyls at C-21， C-22， and a branch of tetrasaccharide moiety (Rha， Cal， Glc， GlcA， or Rha， Xyl， Glc， GlcA) at C-3 were isolated from leaves of Schima superba Gardn。 et Champ。 Their structures were established using one- and two-dimensional NMR and high resolution electrospray ionization mass spectrometry as 21，22-di-O-angeloyl-R_1-bamgenol-3-O-{β-d-glucopyranosyl-(1→2)-β-d-galactopyranosyl-(1 → 2)-[α-l-rhamnopyranosyl-(1 → 4)] }-β-d-glucuronopyranoside， named schi-masuoside A(1)， 21，22-di-O-angeloyl-R_1-barrigenol-3-O-{β-d-glucopyranosyl-(1 →2)-β-d-xylopyranosyl-(1 → 2)-[α-l-rhamnopyranosyl-(1 → 4)] }-β-d-glucurono-pyranoside， named schimasuoside B (2)。 There are strong antifungal effect of their mixture on Magnaporthe oryzae。
NETL
