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Oroxylin A
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
Identifiers
ChEBI
ChemSpider
ECHA InfoCard
100.189.623
KEGG
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
C16 H12 O5
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).
Chemical compound
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]
^ Li H, Chen F (2005). "Isolation and purification of baicalein, wogonin and oroxylin A from the medicinal plant Scutellaria baicalensis by high-speed counter-current chromatography". Journal of Chromatography A . 1074 (1–2): 107–110. doi :10.1016/j.chroma.2005.03.088 . PMID 15941045 .
^ 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 .
^ Nishikawa K, et al. (1999). "Phenolics in tissue cultures of Scutellaria" (PDF) . Natural Medicines . 53 (4): 209–13.
^ 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
^ a b Yoon SY, dela Peña I, Kim SM, Woo TS, Shin CY, Son KH, Park H, Lee YS, Ryu JH, Jin M, Kim KM, 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 .
^ 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 .
^ 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 .
^ 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 .
Aglycones
Monohydroxyflavone Dihydroxyflavones Trihydroxyflavones Tetrahydroxyflavones Pentahydroxyflavones O-methylated flavones
Glycosides
of apigenin of baicalein of hypolaetin of luteolin
Acetylated Sulfated glycosides Polymers Drugs
DAT Tooltip Dopamine transporter (DRIs Tooltip Dopamine reuptake inhibitors )
NET Tooltip Norepinephrine transporter (NRIs Tooltip Norepinephrine reuptake inhibitors )
Others: Antihistamines (e.g., brompheniramine , chlorphenamine , pheniramine , tripelennamine )
Antipsychotics (e.g., loxapine , ziprasidone )
Arylcyclohexylamines (e.g., ketamine , phencyclidine )
Dopexamine
Ephenidine
Ginkgo biloba
Indeloxazine
Nefazodone
Opioids (e.g., desmetramadol , methadone , pethidine (meperidine) , tapentadol , tramadol , levorphanol )
SERT Tooltip Serotonin transporter (SRIs Tooltip Serotonin reuptake inhibitors )
Others: A-80426
Amoxapine
Antihistamines (e.g., brompheniramine , chlorphenamine , dimenhydrinate , diphenhydramine , mepyramine (pyrilamine) , pheniramine , tripelennamine )
Antipsychotics (e.g., loxapine , ziprasidone )
Arylcyclohexylamines (e.g., 3-MeO-PCP , esketamine , ketamine , methoxetamine , phencyclidine )
Cyclobenzaprine
Delucemine
Dextromethorphan
Dextrorphan
Efavirenz
Hypidone
Medifoxamine
Mesembrine
Mifepristone
MIN-117 (WF-516)
N-Me-5-HT
Opioids (e.g., dextropropoxyphene , methadone , pethidine (meperidine) , levorphanol , tapentadol , tramadol )
Roxindole
VMATs Tooltip Vesicular monoamine transporters Others
Ionotropic
GABAA Tooltip γ-Aminobutyric acid A receptor
Positive modulators (abridged; see here for a full list): α-EMTBL
Alcohols (e.g., drinking alcohol , 2M2B )
Anabolic steroids
Avermectins (e.g., ivermectin )
Barbiturates (e.g., phenobarbital )
Benzodiazepines (e.g., diazepam )
Bromide compounds (e.g., potassium bromide )
Carbamates (e.g., meprobamate )
Carbamazepine
Chloralose
Chlormezanone
Clomethiazole
Dihydroergolines (e.g., ergoloid (dihydroergotoxine) )
Etazepine
Etifoxine
Fenamates (e.g., mefenamic acid )
Flavonoids (e.g., apigenin , hispidulin )
Fluoxetine
Flupirtine
Imidazoles (e.g., etomidate )
Kava constituents (e.g., kavain )
Lanthanum
Loreclezole
Monastrol
Neuroactive steroids (e.g., allopregnanolone , cholesterol , THDOC )
Niacin
Niacinamide
Nonbenzodiazepines (e.g., β-carbolines (e.g., abecarnil ), cyclopyrrolones (e.g., zopiclone ), imidazopyridines (e.g., zolpidem ), pyrazolopyrimidines (e.g., zaleplon ))
Norfluoxetine
Petrichloral
Phenols (e.g., propofol )
Phenytoin
Piperidinediones (e.g., glutethimide )
Propanidid
Pyrazolopyridines (e.g., etazolate )
Quinazolinones (e.g., methaqualone )
Retigabine (ezogabine)
ROD-188
Skullcap constituents (e.g., baicalin )
Stiripentol
Sulfonylalkanes (e.g., sulfonmethane (sulfonal) )
Topiramate
Valerian constituents (e.g., valerenic acid )
Volatiles /gases (e.g., chloral hydrate , chloroform , diethyl ether , paraldehyde , sevoflurane )
Negative modulators: 1,3M1B
3M2B
11-Ketoprogesterone
17-Phenylandrostenol
α3IA
α5IA (LS-193,268)
β-CCB
β-CCE
β-CCM
β-CCP
β-EMGBL
Anabolic steroids
Amiloride
Anisatin
β-Lactams (e.g., penicillins , cephalosporins , carbapenems )
Basmisanil
Bemegride
Bicyclic phosphates (TBPS , TBPO , IPTBO )
BIDN
Bilobalide
Bupropion
CHEB
Chlorophenylsilatrane
Cicutoxin
Cloflubicyne
Cyclothiazide
DHEA
DHEA-S
Dieldrin
(+)-DMBB
DMCM
DMPC
EBOB
Etbicyphat
FG-7142 (ZK-31906)
Fiproles (e.g., fipronil )
Flavonoids (e.g., amentoflavone , oroxylin A )
Flumazenil
Fluoroquinolones (e.g., ciprofloxacin )
Flurothyl
Furosemide
Golexanolone
Iomazenil (123 I)
IPTBO
Isopregnanolone (sepranolone)
L-655,708
Laudanosine
Lindane
MaxiPost
Morphine
Morphine-3-glucuronide
MRK-016
Naloxone
Naltrexone
Nicardipine
Nonsteroidal antiandrogens (e.g., apalutamide , bicalutamide , enzalutamide , flutamide , nilutamide )
Oenanthotoxin
Pentylenetetrazol (pentetrazol)
Phenylsilatrane
Picrotoxin (i.e., picrotin , picrotoxinin and dihydropicrotoxinin )
Pregnenolone sulfate
Propybicyphat
PWZ-029
Radequinil
Ro 15-4513
Ro 19-4603
RO4882224
RO4938581
Sarmazenil
SCS
Suritozole
TB-21007
TBOB
TBPS
TCS-1105
Terbequinil
TETS
Thujone
U-93631
Zinc
ZK-93426
GABAA -ρ Tooltip γ-Aminobutyric acid A-rho receptor
Metabotropic
GABAB Tooltip γ-Aminobutyric acid B receptor