Ayanin
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IUPAC name 3′,5-Dihydroxy-3,4′,7-trimethoxyflavone | |
Systematic IUPAC name 5-Hydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,7-dimethoxy-4H-1-benzopyran-4-one | |
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Chemical formula | C18H16O7 |
Molar mass | 344.319 g·mol−1 |
Density | 1.454 g/mL |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references |
Chemical compound
Ayanin is an O-methylated flavonol, a type of flavonoid. It is the 3,7,4'-tri-O-methylated derivative of quercetin.
It can be found in Croton schiedeanus. It can also be synthesized.[1]
Biosynthesis
The enzyme 3,7-dimethylquercetin 4'-O-methyltransferase uses S-adenosyl methionine and rhamnazin to produce S-adenosylhomocysteine and ayanin.
References
- ^ Rao, Koppaka V.; Owoyale, Jacob A. (1976). "Partial methylation of quercetin: Direct synthesis of tamarixetin, ombuin and ayanin". Journal of Heterocyclic Chemistry. 13 (6): 1293–1295. doi:10.1002/jhet.5570130629.
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Flavonols and their conjugates
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