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					Chemical compound, anxiogenic
α3IA[ 1]  
 
Names
  
IUPAC name 
Methyl 5-(4-methoxyphenyl)-1-methyl-2-oxo-6-pyridin-4-ylpyridine-3-carboxylate
 
Identifiers
  
 
  
ChEMBL 
 
ChemSpider 
 
 
 
 
 
InChI=1S/C20H18N2O4/c1-22-18(14-8-10-21-11-9-14)16(12-17(19(22)23)20(24)26-3)13-4-6-15(25-2)7-5-13/h4-12H,1-3H3
Key: LENMNEQXCQXJHV-UHFFFAOYSA-N
 
 
CN1C(=C(C=C(C1=O)C(=O)OC)C2=CC=C(C=C2)OC)C3=CC=NC=C3
 
 
Properties
  
 
C 20 H 18 N 2 O 4 
 
Molar mass 
−1   
 
Except where otherwise noted, data are given for materials in their 
standard state  (at 25 °C [77 °F], 100 kPa).
 
Chemical compound
α3IA , also known as GTPL4094 , is an inverse agonist of the GABAA  receptor . It is more selective for the α3  subunit, hence its name.
Agonism of the α3 subunit shows anxiolytic properties. However, by being an inverse agonist, α3IA has the opposite action: it shows anxiogenic  properties.[ 2] 
This compound also has affinity for the other subunits of the GABAA  receptor , but it is more selective for the α3 subunit.[ 3] 
^ "Alpha3IA" .^ Atack, John R.; Hutson, Peter H.; Collinson, Neil; Marshall, George; Bentley, Graham; Moyes, Christopher; Cook, Susan M.; Collins, Ian; Wafford, Keith; McKernan, Ruth M.; Dawson, Gerard R. (February 2005). "Anxiogenic properties of an inverse agonist selective for alpha3 subunit-containing GABA A receptors" . British Journal of Pharmacology . 144  (3): 357– 366. doi :10.1038/sj.bjp.0706056 . ISSN  0007-1188 . PMC  1576012 PMID  15655523 . ^ Cheng, Tianze; Wallace, Dominique Marie; Ponteri, Benjamin; Tuli, Mahir (2018-05-23). "Valium without dependence? Individual GABAA receptor subtype contribution toward benzodiazepine addiction, tolerance, and therapeutic effects" . Neuropsychiatric Disease and Treatment . 14 : 1351– 1361. doi :10.2147/NDT.S164307 ISSN  1176-6328 . PMC  5973310 PMID  29872302 .   
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