Isoorientin

Isoorientin (or homoorientin) is a flavone, a chemical flavonoid-like compound. It is the luteolin-6-C-glucoside. Bioassay-directed fractionation techniques led to isolation of isoorientin as the main hypoglycaemic component in Gentiana olivieri.[1] Studies also showed that isoorientin is a potential neuroprotective compound against Alzheimer's disease.[2]

Isoorientin
Names
IUPAC name
6-(β-D-Glucopyranosyl)-3′,4′,5,7-tetrahydroxyflavone
Systematic IUPAC name
2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-6-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-4H-1-benzopyran-4-one
Other names
Luteolin-6-C-glucoside
homoorientin
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.128.382
KEGG
UNII
  • InChI=1S/C21H20O11/c22-6-14-17(27)19(29)20(30)21(32-14)16-11(26)5-13-15(18(16)28)10(25)4-12(31-13)7-1-2-8(23)9(24)3-7/h1-5,14,17,19-24,26-30H,6H2/t14-,17-,19+,20-,21+/m1/s1
    Key: ODBRNZZJSYPIDI-VJXVFPJBSA-N
  • C1=CC(=C(C=C1C2=CC(=O)C3=C(C(=C(C=C3O2)O)C4C(C(C(C(O4)CO)O)O)O)O)O)O
Properties
C21H20O11
Molar mass 448.38 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Natural occurrences

Isoorientin can be isolated from the passion flower, Vitex negundo, Terminalia myriocarpa, the Açaí palm and Swertia japonica.

Metabolism

See also

References
  1. Hypoglycaemic activity of Gentiana olivieri and isolation of the active constituent through bioassay- directed fractionation techniques. Ekrem Sezik, Mustafa Aslan, Erdem Yesilada, Shigeru Ito, Life Sciences, 28 January 2005, Volume 76, Issue 11, Pages 1223–1238, doi:10.1016/j.lfs.2004.07.024
  2. Zhibin Liang; Bei Zhang; Wei Wen Su; Philip G Williams; Qing X Li (July 2016). "C-Glycosylflavones Alleviate Tau Phosphorylation and Amyloid Neurotoxicity through GSK3β Inhibition". ACS Chemical Neuroscience. 7: 912–923. doi:10.1021/acschemneuro.6b00059. PMC 7355085. PMID 27213824.



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