Kobophenol A

Kobophenol A
IUPAC name

5-[(2S,3R,4S,5S)-4-[(2S,3S)-3-[(2R,3R)-3-(3,5-dihydroxyphenyl)-6-hydroxy-2-(4-hydroxyphenyl)-2,3-dihydro-1-benzofuran-4-yl]-6-hydroxy-2-(4-hydroxyphenyl)-2,3-dihydro-1-benzofuran-4-yl]-2,5-bis(4-hydroxyphenyl)oxolan-3-yl]benzene-1,3-diol
Identifiers
PubChem 484758
Jmol-3D images Image 1
Properties
Molecular formula C56H44O13
Molar mass 924.94 g/mol
Exact mass 924.278191 u
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Kobophenol A is a stilbene tetramer. It can be isolated from Caragana chamlague[1] and from Caragana sinica.[2]

It has been shown to inhibit acetylcholinesterase.[1]

Acid-catalyzed epimerization of kobophenol A to carasinol B can be performed in vitro.[3]

References

  1. ^ a b (+)-α-Viniferin, a Stilbene Trimer from Caragana chamlague, Inhibits Acetylcholinesterase. Sang Hyun Sung, So Young Kang, Ki Yong Lee, Mi Jung Park, Jeong Hun Kim, Jong Hee Park, Young Chul Kim, Jinwoong Kim and Young Choong Kim, Biological & Pharmaceutical Bulletin, Vol. 25, 2002
  2. ^ Simultaneous determination of the contents of three stilbene oligomers in Caragana sinica collected in different seasons using an improved HPLC method. Shu Na; Zhou Hong; Hu Changqi, Biological & pharmaceutical bulletin, 2006, vol. 29, no4, pp. 608-612
  3. ^ Acid-catalyzed Epimerization of Kobophenol A to Carasinol B. Kejun Cheng, Gaolin Liang and Changqi Hu, Molecules 2008, 13(4), 938-942
Stilbenoids and their glycosides
Stilbenoids
Glycosides
of resveratrol
Oligomeric forms
Ampelopsin A | Amurensin A, B, G and H | Carasinol B | Diptoindonesin C | Diptoindonesin F | Flexuosol A | Gnetin H | Hemsleyanol D | Kobophenol A | Laetevirenol A, B, C, D and E | Vaticanol B | Viniferal | Tetramers : Laetevirenol F and G
of resveratrol
Ampelopsin E | Dimers : ε-viniferin, Parthenocissin A, Quadrangularin A, Pallidol and Amurensin A | Trimers : α-viniferin, Laevifonol (an ε-viniferin-ascorbic acid hybrid compound), Malaysianol A, trans-diptoindonesin B | Tetramers : Hopeaphenol | Vitisins A, B and C
Oligomeric forms glycosides
Diptoindonesin A | Laevifoside (O-glucoside of ampelopsin A)
Misc
Synthetic
Stilbenoid drugs