Radequinil

Radequinil
Systematic (IUPAC) name

5-(3-methoxyphenyl)-3-(5-methyl-1,2,4-oxadiazol-3-yl)-1,6-naphthyridin-2(1H)-one
Clinical data
Identifiers
CAS Registry Number	219846-31-8
ATC code	None
PubChem	CID 22714308
ChemSpider	11584471
Chemical data
Formula	C₁₈H₁₄N₄O₃
Molecular mass	334.329 g/mol
SMILES COc1cccc(c1)c3nccc2NC(=O)\C(=C/c23)c4nc(C)on4
InChI InChI=1S/C18H14N4O3/c1-10-20-17(22-25-10)14-9-13-15(21-18(14)23)6-7-19-16(13)11-4-3-5-12(8-11)24-2/h3-9H,1-2H3,(H,21,23) Key:JQOFKKWHXGQABB-UHFFFAOYSA-N

Radequinil (INN; AC-3933) is a cognitive enhancer which acts as a partial inverse agonist of the benzodiazepine site of the GABA_A receptor.^[1] It was under development by Dainippon Sumitomo Pharma for the treatment of Alzheimer's disease and made it to phase II clinical trials but development seems to have been halted and it was never marketed.^[1]^[2]

References

↑ 1.0 1.1 Martocchia A, Falaschi P (2008). "Current Strategies of Therapy in Alzheimer’s Disease" (PDF). The Open Neuropsychopharmacology Journal 1: 19–23.
↑ Pogacic, Vanda; Herling, Paul (2007). "List of Drugs in Development for Neurodegenerative Diseases". Neurodegenerative Diseases 4 (6): 443486. doi:10.1159/000107705. ISSN 1660-2862.

Nootropics

Ampakines

Cholinergics

Racetams

Nutrients

Others

Index of psychology and psychiatry

Description	Mental processes

Disorders	Mental and behavioral ADHD OCD Tourette's Mood Developmental pervasive dyslexia and specific Substance-related alcohol Emotional and behavioral Symptoms and signs eponymous Evaluation and testing

Treatment	Psychotherapy CBT Drugs depression antipsychotics anxiety dementia hypnotics and sedatives psychostimulants, ADHD and nootropics

GABAergics

Receptor
(ligands)

GABA_A	Agonists: (+)-Catechin Bamaluzole Barbiturates (e.g., phenobarbital) DAVA Dihydromuscimol GABA Gabamide GABOB Gaboxadol (THIP) Homotaurine (tramiprosate, 3-APS) Ibotenic acid iso-THAZ iso-THIP Isoguvacine Isomuscimol Isonipecotic acid Kojic amine Lignans (e.g., honokiol) Monastrol Muscimol Neuroactive steroids (e.g., allopregnanolone) Org 20599 Picamilon P4S Progabide Propofol Quisqualamine SL-75102 TACA TAMP Terpenoids (e.g., borneol) Thiomuscimol Tolgabide ZAPA PAMs (abridged; see here for a full list): α-EMTBL Alcohols (e.g., ethanol) 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) Niacin Nicotinamide (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) Antagonists: Bicuculline Coriamyrtin Dihydrosecurinine Gabazine (SR-95531) Hydrastine Hyenachin (mellitoxin) PHP-501 Pitrazepin Securinine Sinomenine SR-42641 SR-95103 Thiocolchicoside Tutin NAMs: 1,3M1B 3M2B 17-Phenylandrostenol α5IA (LS-193,268) β-CCB β-CCE β-CCM β-CCP β-EMGBL Amiloride Anisatin β-Lactams (e.g., penicillins, cephalosporins, carbapenems) Bemegride Bilobalide CHEB 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 Iomazenil (¹²³I) Isopregnanolone (sepranolone) L-655,708 Laudanosine Leptazol Lindane MaxiPost Morphine Morphine-3-glucuronide MRK-016 Naloxone Naltrexone Nicardipine Oenanthotoxin Pentetrazol (metrazol) Phenylsilatrane Picrotoxin (i.e., picrotin and picrotoxinin) Pregnenolone sulfate Propybicyphat PWZ-029 Radequinil RG-1662 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

GABA_A-ρ	Agonists: CACA CAMP Homohypotaurine GABA GABOB Ibotenic acid Isoguvacine Muscimol N⁴-Chloroacetylcytosine arabinoside Picamilon Progabide TACA TAMP Thiomuscimol Tolgabide PAMs: Lanthanides Antagonists: (S)-2-MeGABA (S)-4-ACPBPA (S)-4-ACPCA 2-MeTACA 3-APMPA 4-ACPAM 4-GBA cis-3-ACPBPA CGP-36742 (SGS-742) DAVA Gabazine (SR-95531) Gaboxadol (THIP) I4AA Isonipecotic acid Loreclezole P4MPA P4S SKF-97541 SR-95318 SR-95813 TPMPA trans-3-ACPBPA ZAPA NAMs: Bilobalide Picrotoxin (picrotin, picrotoxinin) ROD-188 Zinc

GABA_B	Agonists: 1,4-Butanediol Aceburic acid Arbaclofen Arbaclofen placarbil Baclofen GABA Gabamide GABOB GBL GHB GHBAL GHV GVL Lesogaberan Phenibut Picamilon Progabide Sodium oxybate SKF-97,541 SL 75102 Tolgabide PAMs: ADX71441 BHF-177 BHFF BSPP CGP-7930 CGP-13501 GS-39783 rac-BHFF Antagonists: 2-Hydroxysaclofen CGP-35348 CGP-46381 CGP-52432 CGP-54626 CGP-55845 CGP-64213 DAVA Homotaurine (tramiprosate, 3-APS) Phaclofen Saclofen SCH-50911 SKF-97541 NAMs: "Compound 14"

Transporter
(blockers)

GAT	4-Aminovaleric acid β-Alanine Arecaidine CI-966 DABA Deramciclane (EGIS-3886, EGYT-3886) EF-1502 Gabaculine Guvacine Ibotenic acid Muscimol Nipecotic acid NNC 05-2090 NO-711 Riluzole SKF-89976A SNAP-5114 TACA Tiagabine

VIAAT	β-Alanine Bafilomycin A1 Chicago sky blue 6B Evans blue GABA Glycine N-Butyric acid Nigericin Nipecotic acid Valinomycin Vigabatrin

Enzyme
(inhibitors)

GAD	3-Mercaptopropionic acid AAOA L-Allylglycine Semicarbazide

GABA-T	3-Hydrazinopropionic acid γ-Acetylenic-GABA AOAA EOS Gabaculine Isoniazid L-Cycloserine Phenelzine PEH Rosmarinic acid (lemon balm) Sodium valproate Valnoctamide Valproate pivoxil Valproate semisodium (divalproex sodium) Valproic acid Valpromide Vigabatrin

Others

Precursors: 1,4-Butanediol
GHB
GHBAL
Glutamate
Glutamine

Cofactors: Vitamin B₆

Others: GABA-T activators: 3-Methyl-GABA

See also: GHBergics • Glutamatergics • Glycinergics