✦ LIBER ✦
A New Phenolic Diglycoside Produced in Response to Copper Toxicity and a New Flavan Dimer from the Leaves of Viburnum ichangense (Hemsl.) Rehd.
✍ Scribed by Bin Wu; Kuiwu Wang; Xiaodan Wu
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- German
- Weight
- 168 KB
- Volume
- 94
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A new phenolic digycoside 1 was produced as stress metabolite in the fresh leaves of Viburnum ichangense (Hemsl.) Rehd., in response to abiotic stress elicitation by CuCl~2~. The stress metabolite was characterized as 1‐O‐[α‐L‐arabinofuranosyl(1→6)‐β‐D‐glucopyranosyl]‐erythro‐1,2‐bis(4‐hydroxy‐3‐methoxyphenyl)propane‐1,3‐diol (1). A new flavan dimer, 2,3‐epoxyflavan‐3′,4′,5,7‐tetraol‐(4→8″)‐flavan‐3″,3′′′,4′′′,5′′′,6″‐pentaol (2), and two known compounds, hovetrichoside A (3) and asperglaucide (4), were also isolated. Their structures were established by spectroscopic means.