Amentoflavone

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Amentoflavone
Identifiers
CAS number1617-53-4
PubChem5281600
ChemSpider4444919 YesY
ChEMBLCHEMBL63354 YesY
Jmol-3D imagesImage 1
Properties
Molecular formulaC30H18O10
Molar mass538.46 g mol−1
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references
 
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Amentoflavone
Identifiers
CAS number1617-53-4
PubChem5281600
ChemSpider4444919 YesY
ChEMBLCHEMBL63354 YesY
Jmol-3D imagesImage 1
Properties
Molecular formulaC30H18O10
Molar mass538.46 g mol−1
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Amentoflavone is a chemical constituent of a number of plants including Ginkgo biloba, Chamaecyparis obtusa (hinoki), Hypericum perforatum (St. John’s Wort)[1] and Xerophyta plicata.[2]

It is a biflavonoid (bis-apigenin coupled at 8 and 3' positions).

Amentoflavone can interact with many medications by being a potent inhibitor of CYP3A4 and CYP2C9, which are enzymes responsible for the metabolism of some drugs in the body.[3] It is also an inhibitor of human cathepsin B.[1]

Amentoflavone has a variety of in vitro activities including antimalarial activity[4] and affinities for opioid receptors (as an antagonist)[5] and the allosteric (benzodiazepine) site on the GABAA receptor as a negative allosteric modulator.[6]

References[edit source | edit]

  1. ^ a b Pan X, Tan N, Zeng G, Zhang Y, Jia R (October 2005). "Amentoflavone and its derivatives as novel natural inhibitors of human Cathepsin B". Bioorg. Med. Chem. 13 (20): 5819–25. doi:10.1016/j.bmc.2005.05.071. PMID 16084098. 
  2. ^ Williams, Christine A.; Harborne, Jeffrey B.; Tomas-Barberan A., Francisco (1987). "Biflavonoids in the primitive monocots Isophysis tasmanica and Xerophyta plicata". Phytochemistry 26 (9): 2553. doi:10.1016/S0031-9422(00)83875-3. 
  3. ^ Kimura Y, Ito H, Ohnishi R, Hatano T (January 2010). "Inhibitory effects of polyphenols on human cytochrome P450 3A4 and 2C9 activity". Food Chem. Toxicol. 48 (1): 429–35. doi:10.1016/j.fct.2009.10.041. PMID 19883715. 
  4. ^ "Inhibitors of Plasmodium falciparum M1- Family Alanyl Aminopeptidase (M1AAP)". 
  5. ^ Katavic PL, Lamb K, Navarro H, Prisinzano TE. (August 2007). "Flavonoids as opioid receptor ligands: identification and preliminary structure-activity relationships". J Nat Prod. 70 (8): 1278–82. doi:10.1021/np070194x. PMC 2265593. PMID 17685652. 
  6. ^ Hanrahan, JR; Chebib, M; Davucheron, NL; Hall, BJ; Johnston, GA (2003). "Semisynthetic preparation of amentoflavone: A negative modulator at GABA(A) receptors". Bioorganic & medicinal chemistry letters 13 (14): 2281–4. PMID 12824018.