Oroxylin A

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Oroxylin A
Oroxylin A.svg
Oroxylin A molecule ball.png
Names
IUPAC name
5,7-Dihydroxy-6-methoxyflavone
Systematic IUPAC name
5,7-Dihydroxy-6-methoxy-2-phenyl-4H-1-benzopyran-4-one
Other names
Baicalein 6-methyl ether
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.189.623 OOjs UI icon edit-ltr-progressive.svg
KEGG
PubChem CID
UNII
  • InChI=1S/C16H12O5/c1-20-16-11(18)8-13-14(15(16)19)10(17)7-12(21-13)9-5- 3-2-4-6-9/h2-8,18-19H,1H3
    Key: LKOJGSWUMISDOF-UHFFFAOYSA-N
  • COC1=C(C=C2C(=C1O)C(=O)C=C(O2)C3=CC=CC=C3)O
Properties
C16H12O5
Molar mass 284.26 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Oroxylin A is an O-methylated flavone, a chemical compound that can be found in the medicinal plants Scutellaria baicalensis [1] and Scutellaria lateriflora , [2] [3] and the Oroxylum indicum tree. [4] It has demonstrated activity as a dopamine reuptake inhibitor, [5] and is also a negative allosteric modulator of the benzodiazepine site of the GABAA receptor. [5] [6] [7] Oroxylin A has been found to improve memory consolidation in mice by elevating brain-derived neurotrophic factor (BDNF) levels in the hippocampus. [8]

See also

Related Research Articles

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<i>Scutellaria</i> Genus of flowering plants

Scutellaria is a genus of flowering plants in the mint family, Lamiaceae. They are known commonly as skullcaps. The generic name is derived from the Latin scutella, meaning "a small dish, tray or platter", or "little dish", referring to the shape of the calyx. The common name alludes to the resemblance of the same structure to "miniature medieval helmets". The genus has a subcosmopolitan distribution, with species occurring nearly worldwide, mainly in temperate regions.

<span class="mw-page-title-main">Apigenin</span> Chemical compound

Apigenin (4′,5,7-trihydroxyflavone), found in many plants, is a natural product belonging to the flavone class that is the aglycone of several naturally occurring glycosides. It is a yellow crystalline solid that has been used to dye wool.

<span class="mw-page-title-main">Chrysin</span> Chemical compound

Chrysin, also called 5,7-dihydroxyflavone, is a flavone found in honey, propolis, the passion flowers, Passiflora caerulea and Passiflora incarnata, and in Oroxylum indicum. It is extracted from various plants, such as the blue passion flower. Following oral intake by humans, chrysin has low bioavailability and rapid excretion. It is under basic research to evaluate its safety and potential biological effects.

<i>Scutellaria baicalensis</i> Species of flowering plant

Scutellaria baicalensis, with the common name Baikal skullcap or Chinese skullcap, is a species of flowering plant in the family Lamiaceae.

<i>Scutellaria lateriflora</i> Species of flowering plant

Scutellaria lateriflora, is a hardy perennial herb of the mint family, Lamiaceae, native to North America.

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<span class="mw-page-title-main">Baicalin</span> Chemical compound

As baicalin is a flavone glycoside, it is a flavonoid. It is the glucuronide of baicalein.

<span class="mw-page-title-main">Baicalein</span> Chemical compound

Baicalein (5,6,7-trihydroxyflavone) is a flavone, a type of flavonoid, originally isolated from the roots of Scutellaria baicalensis and Scutellaria lateriflora. It is also reported in Oroxylum indicum and Thyme. It is the aglycone of baicalin. Baicalein is one of the active ingredients of Sho-Saiko-To, which is a Chinese classic herbal formula, and listed in Japan as Kampo medicine.

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<span class="mw-page-title-main">Wogonin</span> Chemical compound

Wogonin is an O-methylated flavone, a flavonoid-like chemical compound which is found in Scutellaria baicalensis.

<span class="mw-page-title-main">Scutellarin</span> Chemical compound

Scutellarin is a flavone, a type of phenolic chemical compound. It can be found in the Asian "barbed skullcap" Scutellaria barbata and the north American plant S. lateriflora both of which have been used in traditional medicine. The compound is found only in trace amounts in the "Chinese skullcap" Scutellaria baicalensis, another plant used in traditional Chinese medicine.

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Cerebral dopamine neurotrophic factor also known as ARMET-like protein 1 is a protein that in humans is encoded by the CDNF gene.

<span class="mw-page-title-main">Visnagin</span> Chemical compound

Visnagin is an organic chemical compound with the molecular formula C13H10O4 It is a furanochromone, a compound derivative of chromone (1,4-benzopyrone) and furan.

Baicalin-beta-D-glucuronidase (EC 3.2.1.167, baicalinase) is an enzyme with systematic name 5,6,7-trihydroxyflavone-7-O-beta-D-glucupyranosiduronate glucuronosylhydrolase. This enzyme catalyses the following chemical reaction

<span class="mw-page-title-main">Homoisoflavonoid</span> Type of phenolic compound

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<span class="mw-page-title-main">Tropoflavin</span> Chemical compound

Tropoflavin, also known as 7,8-dihydroxyflavone, is a naturally occurring flavone found in Godmania aesculifolia, Tridax procumbens, and primula tree leaves. It has been found to act as a potent and selective small-molecule agonist of the tropomyosin receptor kinase B (TrkB), the main signaling receptor of the neurotrophin brain-derived neurotrophic factor (BDNF). Tropoflavin is both orally bioavailable and able to penetrate the blood–brain barrier. A prodrug of tropoflavin with greatly improved potency and pharmacokinetics, R13, is under development for the treatment of Alzheimer's disease.

<span class="mw-page-title-main">5,7-dihydroxy-6-methoxy-2-(4-phenoxyphenyl)chromen-4-one</span> Chemical compound

5,7-Dihydroxy-6-methoxy-2(4-phenoxyphenyl)-4H-chromene-4-one (DMPC) is a derivative of Oroxylin A.It has memory improving effects and can reduce ADHD-like behavior.

References

  1. Isolation and purification of baicalein, wogonin and oroxylin A from the medicinal plant Scutellaria baicalensis by high-speed counter-current chromatography. Hua-Bin Li and Feng Chen, Journal of Chromatography A, 13 May 2005, Volume 1074, Issues 1–2, pages 107–110, doi : 10.1016/j.chroma.2005.03.088
  2. Li J, Ding Y, Li XC, Ferreira D, Khan S, Smillie T, Khan IA (2009). "Scuteflorins A and B, dihydropyranocoumarins from Scutellaria lateriflora". J. Nat. Prod. 72 (6): 983–7. doi:10.1021/np900068t. PMID   19555121.
  3. Nishikawa K, et al. (1999). "Phenolics in tissue cultures of Scutellaria" (PDF). Natural Medicines. 53 (4): 209–13.
  4. The constitution of oroxylin-A, a yellow colouring matter from the root-bark of Oroxylum indicum, vent R. C. Shah, C. R. Mehta and T. S. Wheeler
  5. 1 2 Yoon SY, dela Peña I, Kim SM, Woo TS, Shin CY, Son KH, Park H, Lee YS, Ryu JH, Jin M, Kim K, Cheong JH (2013). "Oroxylin A improves attention deficit hyperactivity disorder-like behaviors in the spontaneously hypertensive rat and inhibits reuptake of dopamine in vitro". Archives of Pharmacal Research. 36 (1): 134–140. doi:10.1007/s12272-013-0009-6. ISSN   0253-6269. PMID   23371806. S2CID   23927252.
  6. Liao JF, Wang HH, Chen MC, Chen CC, Chen CF (1998). "Benzodiazepine binding site-interactive flavones from Scutellaria baicalensis root". Planta Med. 64 (6): 571–2. doi:10.1055/s-2006-957517. PMID   9776664. S2CID   260251315.
  7. Liu X, Hong SI, Park SJ, Dela Peña JB, Che H, Yoon SY, Kim DH, Kim JM, Cai M, Risbrough V, Geyer MA, Shin CY, Cheong JH, Park H, Lew JH, Ryu JH (2013). "The ameliorating effects of 5,7-dihydroxy-6-methoxy-2(4-phenoxyphenyl)-4H-chromene-4-one, an oroxylin A derivative, against memory impairment and sensorimotor gating deficit in mice". Arch. Pharm. Res. 36 (7): 854–63. doi:10.1007/s12272-013-0106-6. PMID   23543630. S2CID   2554248.
  8. Kim DH, Lee Y, Lee HE, Park SJ, Jeon SJ, Jeon SJ, Cheong JH, Shin CY, Son KH, Ryu JH (2014). "Oroxylin A enhances memory consolidation through the brain-derived neurotrophic factor in mice". Brain Res. Bull. 108: 67–73. doi:10.1016/j.brainresbull.2014.09.001. PMID   25218897. S2CID   21456826.