Guaijaverin is the 3-O-
arabinoside
Arabinose is an aldopentose – a monosaccharide containing five carbon atoms, and including an aldehyde (CHO) functional group.
For biosynthetic reasons, most saccharides are almost always more abundant in nature as the "D"-form, or structurally ...
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 ...
. It is found in the leaves of ''
Psidium guajava
''Psidium guajava'', the common guava, yellow guava, lemon guava, or apple guava is an evergreen shrub or small tree native to the Caribbean, Central America and South America. It is easily pollinated by insects; when cultivated, it is polli ...
'', the common guava.
[675. Constituents of the leaves of Psidium guaijava, L. Part II. Quercetin, avicularin, and guaijaverin. H El Khadem, YS Mohammed, Journal of the Chemical Society (Resumed), 1958]
References
Quercetin glycosides
arabinosides
Psidium
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