Ayanin is an
''O''-methylated flavonol, a type of flavonoid. It is the 3,7,4'-tri-''O''-methylated
derivative
In mathematics, the derivative of a function of a real variable measures the sensitivity to change of the function value (output value) with respect to a change in its argument (input value). Derivatives are a fundamental tool of calculus. F ...
of
quercetin
Quercetin is a plant flavonol from the flavonoid group of polyphenols. It is found in many fruits, vegetables, leaves, seeds, and grains; capers, red onions, and kale are common foods containing appreciable amounts of it. It has a bitter flavor a ...
.
It can be found in ''
Croton schiedeanus
''Croton schiedeanus'' is a plant species native from Mexico to tropical South America.
''C schiedeanus'' is known to contain the flavonol ayanin and cis-Clerodane diterpene, clerodane diterpenoids.
See also
* List of Croton species
References ...
''. It can also be synthetized.
Biosynthesis
The enzyme
3,7-dimethylquercetin 4'-O-methyltransferase
In enzymology, a 3,7-dimethylquercetin 4'-O-methyltransferase () is an enzyme that catalyzes the chemical reaction
:S-adenosyl-L-methionine + 5,3',4'-trihydroxy-3,7-dimethoxyflavone \rightleftharpoons S-adenosyl-L-homocysteine + 5,3'-dihydroxy-3, ...
uses
''S''-adenosyl methionine and
rhamnazin
Rhamnazin is an ''O''-methylated flavonol, a type of chemical compound. It can be found in ''Rhamnus petiolaris'', a buckthorn plant endemic to Sri Lanka.
Metabolism
The enzyme 3-methylquercetin 7-''O''-methyltransferase uses ''S''-adenosyl m ...
to produce
''S''-adenosylhomocysteine and ayanin.
References
O-methylated flavonols
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