Isovitexin (or homovitexin, saponaretin) is a
flavone
Flavone is an organic compound with the formula . A white solid, flavone is a derivative of chromone with a phenyl (Ph) substituent adjacent to the ether group. The compound is of little direct practical importance, but susbstituted derivatives, t ...
. the
apigenin-6-''C''-
glucoside
A glucoside is a glycoside that is derived from glucose. Glucosides are common in plants, but rare in animals. Glucose is produced when a glucoside is hydrolysed by purely chemical means, or decomposed by fermentation or enzymes.
The name was o ...
. In this case, the prefix 'iso' does not imply an
isoflavonoid (the position of the B-ring on the C-ring), but the position of the glucoside on the flavone.
Natural occurrence
It can be found in the
passion flower
''Passiflora'', known also as the passion flowers or passion vines, is a genus of about 550 species of flowering plants, the type genus of the family Passifloraceae.
They are mostly tendril-bearing vines, with some being shrubs or trees. They ...
, Cannabis,
oat and the
açaí palm.
["Pharmacological studies of Passiflora sp. and their bioactive compounds"]
Metabolism
*
Isovitexin beta-glucosyltransferase
Glycosides
Saponarin is the isovitexin-7-O-glucoside.
See also
*
Vitexin
Vitexin is an apigenin flavone glucoside, a chemical compound found in the passion flower, ''Vitex agnus-castus'' (chaste tree or chasteberry), in the ''Phyllostachys nigra'' bamboo leaves, in the pearl millet (Pennisetum millet), and in Hawthorn. ...
, the 8-C-
glucoside
A glucoside is a glycoside that is derived from glucose. Glucosides are common in plants, but rare in animals. Glucose is produced when a glucoside is hydrolysed by purely chemical means, or decomposed by fermentation or enzymes.
The name was o ...
of apigenin
*
Isoorientin, the 3'-OH derivative
References
{{flavone
Flavone glucosides
C-glycoside natural phenols