28283-48-9

Upstream product

• 72629-77-7 oleanolic acid 3-O-β-D-glucopyranosyl-(1-4)-β-D-xylopyranosyl-(1-3)-α-L-rhamnopyranosyl-(1-2)-α-L-arabinopyranoside 
• 76742-94-4 oleanolic acid 3-O-β-D-glucopyranosyl-(1-4)-β-D-glucopyranosyl-(1-4)-β-D-xylopyranosyl-(1-3)-α-L-rhamnopyranosyl-(1-2)-α-L-arabinopyranoside 
• 75799-18-7 oleanolic acid 3-O-3)-O-α-L-rhamnopyranosyl-(1->2)>-α-L-arabinopyranoside 
• 101020-99-9 oleanolic acid 28-O-β-D-glucopyranoside 3-O-2)-O-β-D-glucopyranosyl-(1->3)-α-L-arabinopyranoside> 
• 76742-94-4 oleanolic acid 3-O-β-D-glucopyranosyl-(1->4)-β-D-glucopyranosyl-(1->4)-β-D-ribopyranosyl-(1->3)-α-L-rhamnopyranosyl-(1->2)-α-L-arabinopyranoside 
• 72629-77-7 C₅₂H₈₄O₂₀ 
• 75799-17-6 oleanolic acid 3-O-β-D-xylopyranosyl-(1-3)-α-L-rhamnopyranosyl-(1-2)-α-L-arabinopyranoside 
• 75799-17-6 oleanolic acid 3-O-β-D-ribopyranosyl-(1-3)-α-L-rhamnopyranosyl-(1-2)-α-L-arabinopyranoside 
• 75799-17-6 oleanolic acid 3-O-β-D-xylopyranosyl-(1-3)-α-L-rhamnopyranosyl-(1-2)-α-L-arabinopyranoside 

Downstream Products

• 5328-37-0 L-arabinose 
• 508-02-1 Oleanolic acid 

Relevant academic research and scientific papers

New cytotoxic oleanane saponins from the infructescences of Polyscias amplifolia from the Madagascar rainforest

Bioassay-guided fractionation of an ethanolic extract of the infructescences of Polyscias amplifolia resulted in the isolation of two new oleanolic acid saponins, polyfoliolides A (1) and B (2), in addition to the two known saponins 3-O-β-D-galactopyrano-syloleanolic acid (3) and 3-O-β-D-galactopyranosyl-(1→4)-β-D-galactopyranosyloleanolic acid (4). The structures of the two new compounds were established as 3-O-β-D-galactopyranosyl-(1→4)-β-D-xylopyranosyloleanolic acid (1) and 3-O-β-D-galactopyranosyl-(1→4)-α-L-arabinopyranosyloleanolic acid (2) on the basis of extensive 1D and 2D NMR spectroscopic data interpretation and chemical conversions. All the isolated compounds showed weak cytotoxicity against A2780 human ovarian cancer cell line, with IC50 values in the range 6.7 to 10.8 μg/mL.

TRITERPENE SAPONINS FROM Thalictrum minus. STRUCTURE OF THALICOSIDE B

The epigeal part of Thalictrum minus L. has yielded a new bidesmoside - thalicoside B - which has the structure of oleanolic acid 28-O-β-D-glucopyranoside 3-O- 2)-O-β-D-glucopyranosyl-(1 -> 3)-α-L-arabinopyranoside>.

TRITERPENE GLYCOSIDES AND THEIR GENINS FROM Thalictrum foetidum. I. THE STRUCTURE OF FOETOSIDE C

A new glycoside - foetoside C - has been isolated from the epigeal part of Thalictrum foetidum L. and, on the basis of chemical transformations and spectral characteristics its structure has been established as oleanolic acid 28-6)-O-β-D-glucopyranoside> 3-O-3)-O-α-L-rhamnopyranosyl-(1->2)-α-L-arabinopyranoside>.