Structure Identification: |
J Nat Med. 2011 Jan;65(1):191-3. | Aromatic compounds and their antioxidant activity of Acer saccharum.[Pubmed: 20686865] |
METHODS AND RESULTS:
A new lignan glycoside, 5-(3″,4″-dimethoxy-phenyl)-3-hydroxy-3-(4'-hydroxy-3'-methoxybenzyl)-4-hydroxymethyl-dihydrofuran-2-one 4'-O-α-L: -rhamnopyranoside (1), with seven known compounds, compound 2, koaburside, icariside E(4), Cleomiscosin C, cleomiscosin D, scopoletin, and 5'-demethylaquillochin, were isolated from the EtOH extract of the wood of Acer saccharum (Aceraceae). Their structures were determined by 1D and 2D nuclear magnetic resonance (NMR) and mass spectroscopy analysis. All of the isolated compounds, 1-8, were tested for their antioxidant activity in superoxide dismutase (SOD)-like assay. | Tetrahedron, 1985, 41(1):209-14. | Structures of cleomiscosins, coumarinolignoids of cleome viscosa seeds.[Reference: WebLink] | METHODS AND RESULTS:
Structures of cleomiscosin A, cleomiscosin B and Cleomiscosin C, three new coumarino-lignoids isolated from the seeds of Cleome viscosa Linné, have been established as 1a, 2a and 1f irrespectively, on the basis of spectral and chemical evidence.
CONCLUSIONS:
The compounds exhibited liver-protective properties. |
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