Centaureidin

Centaureidin
Names

IUPAC name 5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,6-dimethoxychromen-4-one
Other names Desmethoxycentaureidine 5,7,3'-Trihydroxy-3,6,4'-trimethoxyflavone
Identifiers
CAS Number	17313-52-9^Y
3D model (Jmol)	Interactive image
ChEBI	CHEBI:69356^N
ChemSpider	4474997^N
PubChem	5315773
InChI InChI=1S/C18H16O8/c1-23-11-5-4-8(6-9(11)19)16-18(25-3)15(22)13-12(26-16)7-10(20)17(24-2)14(13)21/h4-7,19-21H,1-3H3^N Key: BZXULYMZYPRZOG-UHFFFAOYSA-N^N InChI=1/C18H16O8/c1-23-11-5-4-8(6-9(11)19)16-18(25-3)15(22)13-12(26-16)7-10(20)17(24-2)14(13)21/h4-7,19-21H,1-3H3 Key: BZXULYMZYPRZOG-UHFFFAOYAN
SMILES O=C1c3c(O)c(OC)c(O)cc3O/C(=C1/OC)c2ccc(OC)c(O)c2
Properties
Chemical formula	C₁₈H₁₆O₈
Molar mass	360.31 g/mol
Density	1.542 g/mL
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is ^YN ?)
Infobox references

Centaureidin is an O-methylated flavonol. It can be isolated from Tanacetum microphyllum,^[1] Brickellia veronicaefolia, Bidens pilosa^[2] and Polymnia fruticosa.^[3]

References

↑ Abad, Maria Jose; Bermejo, Paulina; Villar, Angel (1995). "The activity of flavonoids extracted from Tanacetum microphyllum DC. (Compositae) on soybean lipoxygenase and prostaglandin synthetase". General Pharmacology: the Vascular System. 26 (4): 815–9. doi:10.1016/0306-3623(94)00242-F. PMID 7635257.
↑ Chang, Shu-Lin; Chiang, Yi-Ming; Chang, Cicero Lee-Tian; Yeh, Hsu-Hua; Shyur, Lie-Fen; Kuo, Yueh-Hsiung; Wu, Tung-Kung; Yang, Wen-Chin (2007). "Flavonoids, centaurein and centaureidin, from Bidens pilosa, stimulate IFN-γ expression". Journal of Ethnopharmacology. 112 (2): 232–6. doi:10.1016/j.jep.2007.03.001. PMID 17408892.
↑ Beutler, John A.; Cardellina, John H.; Lin, Chii M.; Hamel, Ernest; Cragg, Gordon M.; Boyd, Michael R. (1993). "Centaureidin, a cytotoxic flavone from Polymnia fruticosa, inhibits tubulin polymerization". Bioorganic & Medicinal Chemistry Letters. 3 (4): 581–4. doi:10.1016/S0960-894X(01)81233-6.

Flavonols and their conjugates

Backbone

Aglycones	3-Hydroxyflavone (synthetic) and derivatives

Aglycones

Conjugates

Glycosides of herbacetin

Glycosides of kaempferol

Glycosides of myricetin

Conjugates of quercetin

Sulfates	Quercetin 3-O-sulfate Quercetin 3,3'-bissulfate Quercetin 3,4'-bissulfate

Glycosides	Avicularin (quercetin-3-O-α-L-arabinofuranoside) CTN-986 Guaijaverin (quercetin 3-O-arabinoside) Heliosin (quercetin 3-digalactoside) Hyperoside (quercetin 3-O-galactoside) Isoquercetin (quercetin 3-O-glucoside) Miquelianin (quercetin 3-O-glucuronide) Quercetin 3,4'-diglucoside Quercetin-3-sophorodide Quercitrin (quercetin 3-O-rhamnoside) Rutin (quercetin rutinoside) Reinutrin (quercetin-3-D-xyloside) Spiraeoside (quercetin 4'-O-glucoside) Taxillusin (galloylated 3-O-glucoside of quercetin°

O-Methylated flavonols

Aglycones

Glycosides

of isorhamnetin	Narcissin (Isorhamnetin 3-O-rutinoside) Isorhamnetin 3-O-glucoside Tamarixetin 7-rutinoside

other	Azalein (Azaleatin 3-O-α-L-rhamnoside) Centaurein (Centaureidin 7-O-glucoside) Eupalin (Eupalitin 3-0-rhamnoside) Eupatolin (Eupatolitin 3-O-rhamnoside) Jacein (Jaceidin 7-O-glucoside) Patulitrin (Patuletin 7-O-glucoside Xanthorhamnin (Rhamnetin glycoside)

Derivative flavonols

Aglycones	Noricaritin Dihydronoricaritin

Glycosides	Amurensin Icariin Phelloside Dihydrophelloside Rutin S

Pyranoflavonols

Aglycones	Karanjachromene

Furanoflavonols

Semisynthetic

Glycosides	Hydroxyethylrutosides Monoxerutin Troxerutin

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