- Flavanonol
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The flavanonols (with two "o"s aka 3-hydroxyflavanone or 2,3-dihydroflavonol) are a class of flavonoids that use the 3-hydroxy-2,3-dihydro-2-phenylchromen-4-one (IUPAC name) backbone.
Some examples include:
- Taxifolin (or Dihydroquercetin)
- Aromadedrin (or Dihydrokaempferol)
Metabolism
- Flavanone 3-dioxygenase
- Flavonol synthase
- Dihydroflavonol 4-reductase
Glycosides
Glycosides (chrysandroside A and chrysandroside B) can be found in the roots of Gordonia chrysandra[1]. Xeractinol, a dihydroflavonol C-glucoside can be isolated from the leaves of Paepalanthus argenteus var. argenteus[2].
Dihydro-flavonol glycosides (astilbin, neoastilbin, (2R, 3R)-taxifolin-3'-O-beta-D-pyranglucoside) have been identified in the rhizome of Smilax glabra[3].
References
- ^ Kun Wanga; Jing Zhi Yanga; Li Zuoa; Dong Ming Zhang (January 2008). "Two new flavanonol glycosides from Gordonia chrysandra". Chinese Chemical Letters 19 (1): 61–4. doi:10.1016/j.cclet.2007.10.033.
- ^ Anne Lígia Dokkedal; Francisco Lavarda; Lourdes Campaner dos Santos; Wagner Vilegas (March/April 2007). "Xeractinol – a new flavanonol C-glucoside from Paepalanthus argenteus var. argenteus (Bongard) Hensold (Eriocaulaceae)". J. Braz. Chem. Soc. 18 (2). doi:10.1590/S0103-50532007000200029. http://www.scielo.br/scielo.php?pid=S0103-50532007000200029&script=sci_arttext.
- ^ Yuan JZ, Dou DQ, Chen YJ, et al. (September 2004). "[Studies on dihydroflavonol glycosides from rhizome of Smilax glabra]" (in Chinese). Zhongguo Zhong Yao Za Zhi 29 (9): 867–70. PMID 15575206.
Types of Flavonoids Flavonoids Flavones | Flavonols (Pyranoflavonols, Furanoflavonols) | Flavanones | Flavanonols | Flavans | Flavan-3-ols | Flavan-4-ols | Flavan-3,4-diols | Anthocyanidins (Anthocyanins) | Condensed tanninsIsoflavonoids Isoflavones (Pyranoisoflavones) | Isoflavans | PterocarpansNeoflavonoids Aurones Aureusidin | LeptosidinOther categories C-methylated flavonoids | O-methylated flavonoids | Flavonolignans | Furanoflavonoids | Pyranoflavonoids | Methylenedioxyflavonoids | Prenylated flavonoids | CastavinolsFlavonoid biosynthesis3-Hydroxyflavanones: Ampelopsin (Dihydromyricetin) | Aromadedrin (Dihydrokaempferol) | Dihydrogossypetin | Dihydromorin | Fustin (Dihydrofisetin) | Garbanzol | Taxifolin (Dihydroquercetin)O-methylated flavanonols dihydroflavonol 3-O-glycosides Lecontin | (+)-fustin glucosideGlycosides Acetylated glycosides PhellamurinThis article about a natural phenol is a stub. You can help Wikipedia by expanding it.