SB-205,384

SB-205,384
Legal status

Legal status	Investigational New Drug
Identifiers
IUPAC name but-2-ynyl 4-amino-7-hydroxy-2-methyl-5,6,7,8-tetrahydro-[1]benzothiolo[3,2-e]pyridine-3-carboxylate
CAS Number	160296-13-9^Y
PubChem (CID)	197690
ChemSpider	171116
Chemical and physical data
Formula	C₁₇H₁₈N₂O₃S
Molar mass	330.401 g/mol
3D model (Jmol)	Interactive image
SMILES CC#CCOC(=O)c1c(C)nc2sc3CC(O)CCc3c2c1N
InChI InChI=1S/C17H18N2O3S/c1-3-4-7-22-17(21)13-9(2)19-16-14(15(13)18)11-6-5-10(20)8-12(11)23-16/h10,20H,5-8H2,1-2H3,(H2,18,19) Key:JDTZAGLGBRRCJT-UHFFFAOYSA-N
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SB-205,384 is an anxiolytic drug. It has similar effects to benzodiazepine drugs, but is structurally distinct and so is classed as a nonbenzodiazepine anxiolytic.

SB-205,384 is a GABA_A positive allosteric modulator, which binds preferentially to α3, α5, and α6 subunit containing subtypes.^[1]^[2] It has a novel mechanism of action, prolonging the duration of GABA-mediated chloride flux but without increasing the intensity of the response, and this may give it an unusual pharmacological profile,^[3] with tests showing that it alters the firing of some populations of neurons while leaving others unaffected.^[4] Animal studies have shown it to produce both anxiolytic and anti-aggressive effects, but with little sedation or other behavioural changes.^[5]^[6]

References

↑ Heidelberg LS; Warren JW; Fisher JL (2013). "SB-205384 is a positive allosteric modulator of recombinant GABAA receptors containing rat α3, α5, or α6 subunit subtypes coexpressed with β3 and γ2 subunits". J. Pharmacol. Exp. Ther. 347 (1): 235–41. doi:10.1124/jpet.113.207324. PMID 23902941.
↑ Meadows, HJ; Kumar, CS; Pritchett, DB; Blackburn, TP; Benham, CD (1998). "SB-205384: a GABAA receptor modulator with novel mechanism of action that shows subunit selectivity". British Journal of Pharmacology. 123 (6): 1253–9. doi:10.1038/sj.bjp.0701721. PMC 1565273. PMID 9559912.
↑ Meadows, HJ; Harries, MH; Thompson, M; Benham, CD (1997). "Effect of SB-205384 on the decay of GABA-activated chloride currents in granule cells cultured from rat cerebellum". British Journal of Pharmacology. 121 (7): 1334–8. doi:10.1038/sj.bjp.0701251. PMC 1564816. PMID 9257911.
↑ Ing, T; Poulter, MO (2007). "Diversity of GABA(A) receptor synaptic currents on individual pyramidal cortical neurons". The European Journal of Neuroscience. 25 (3): 723–34. doi:10.1111/j.1460-9568.2007.05331.x. PMID 17313570.
↑ Navarro, JF; Burón, E; Martín-López, M (2006). "Anxiolytic-like activity of SB-205384 in the elevated plus-maze test in mice". Psicothema. 18 (1): 100–4. PMID 17296016.
↑ Navarro, JF; Burón, E; Martín-López, M (2008). "Effects of SB-205384, a positive modulator of alpha3-subunit-containing GABA-A receptors, on isolation-induced aggression in male mice". Psicothema. 20 (1): 144–7. PMID 18206077.

Anxiolytics (N05B)

5-HT_1A agonists	Buspirone Tandospirone

GABA_AR PAMs	Benzodiazepines: Adinazolam Alprazolam Bromazepam Camazepam Chlordiazepoxide Clobazam Clonazepam Clorazepate Clotiazepam Cloxazolam Diazepam^# Ethyl loflazepate Etizolam Fludiazepam Halazepam Ketazolam Lorazepam^# Medazepam Nordazepam Oxazepam Pinazepam Prazepam Others: Alpidem^‡ Barbiturates Carbamates Chlormezanone^‡ Ethanol Etifoxine; Herbs: Kava Skullcap Valerian

α₂δ VDCC blockers	Gabapentin Gabapentin enacarbil Phenibut Pregabalin

Antidepressants	SSRIs SNRIs SARIs TCAs TeCAs MAOIs; Others: Agomelatine Bupropion Vilazodone Vortioxetine

Sympatholytics	Beta blockers (e.g., propranolol) Clonidine Dexmedetomidine Guanfacine Prazosin

Others	Benzoctamine Cannabidiol Cycloserine Fabomotizole Hydroxyzine Kanna Lavender Lorpiprazole Mebicar Mepiprazole Nicotine Opipramol Oxaflozane^‡ Phenaglycodol Phenibut Picamilon Selank Tiagabine Tofisopam Validolum

GABA_A receptor positive allosteric modulators

Alcohols	Brometone Butanol Chloralodol Chlorobutanol (cloretone) Ethanol (drinking alcohol) Ethchlorvynol Isobutanol Isopropanol Menthol Methanol Methylpentynol Pentanol Petrichloral Propanol tert-Butanol (2M2P) tert-Pentanol (2M2B) Tribromoethanol Trichloroethanol Triclofos Trifluoroethanol

Barbiturates	(-)-DMBB Allobarbital Alphenal Amobarbital Aprobarbital Barbexaclone Barbital Benzobarbital Benzylbutylbarbiturate Brallobarbital Brophebarbital Butabarbital/Secbutabarbital Butalbital Buthalital Butobarbital Butallylonal Carbubarb CP-1414S Crotylbarbital Cyclobarbital Cyclopentobarbital Difebarbamate Enallylpropymal Ethallobarbital Eterobarb Febarbamate Heptabarb Heptobarbital Hexethal Hexobarbital Metharbital Methitural Methohexital Methylphenobarbital Narcobarbital Nealbarbital Pentobarbital Phenallymal Phenobarbital Phetharbital Primidone Probarbital Propallylonal Propylbarbital Proxibarbital Reposal Secobarbital Sigmodal Spirobarbital Talbutal Tetrabamate Tetrabarbital Thialbarbital Thiamylal Thiobarbital Thiobutabarbital Thiopental Thiotetrabarbital Valofane Vinbarbital Vinylbital

Benzodiazepines	2-Oxoquazepam 3-Hydroxyphenazepam Adinazolam Alprazolam Arfendazam Avizafone Bentazepam Bretazenil Bromazepam Brotizolam Camazepam Carburazepam Chlordiazepoxide Ciclotizolam Cinazepam Cinolazepam Clazolam Climazolam Clobazam Clonazepam Clonazolam Clorazepate Clotiazepam Cloxazolam Cyprazepam Delorazepam Demoxepam Diazepam Diclazepam Doxefazepam Elfazepam Estazolam Ethyl carfluzepate Ethyl dirazepate Ethyl loflazepate Etizolam EVT-201 FG-8205 Fletazepam Flubromazepam Flubromazolam Fludiazepam Flunitrazepam Flurazepam Flutazolam Flutemazepam Flutoprazepam Fosazepam Gidazepam Halazepam Haloxazolam Iclazepam Imidazenil Irazepine Ketazolam Lofendazam Lopirazepam Loprazolam Lorazepam Lormetazepam Meclonazepam Medazepam Menitrazepam Metaclazepam Mexazolam Midazolam Motrazepam N-Desalkylflurazepam Nifoxipam Nimetazepam Nitrazepam Nitrazepate Nitrazolam Nordazepam Nortetrazepam Oxazepam Oxazolam Phenazepam Pinazepam Pivoxazepam Prazepam Premazepam Proflazepam Pyrazolam QH-II-66 Quazepam Reclazepam Remimazolam Rilmazafone Ripazepam Ro48-6791 Ro48-8684 SH-053-R-CH3-2′F Sulazepam Temazepam Tetrazepam Tolufazepam Triazolam Triflubazam Triflunordazepam (Ro5-2904) Tuclazepam Uldazepam Zapizolam Zolazepam Zomebazam

Carbamates	Carisbamate Carisoprodol Clocental Cyclarbamate Difebarbamate Emylcamate Ethinamate Febarbamate Felbamate Hexapropymate Lorbamate Mebutamate Meprobamate Nisobamate Pentabamate Phenprobamate Procymate Styramate Tetrabamate Tybamate

Flavonoids	6-Methylapigenin Ampelopsin (dihydromyricetin) Apigenin Baicalein Baicalin Catechin EGC EGCG Hispidulin Linarin Luteolin Rc-OMe Skullcap constituents (e.g., baicalin) Wogonin

Imidazoles	Etomidate Metomidate Propoxate

Kava constituents	10-Methoxyyangonin 11-Methoxyyangonin 11-Hydroxyyangonin Desmethoxyyangonin 11-Methoxy-12-hydroxydehydrokavain 7,8-Dihydroyangonin Kavain 5-Hydroxykavain 5,6-Dihydroyangonin 7,8-Dihydrokavain 5,6,7,8-Tetrahydroyangonin 5,6-Dehydromethysticin Methysticin 7,8-Dihydromethysticin Yangonin

Monoureides	Acecarbromal Apronal (apronalide) Bromisoval Carbromal Capuride Ectylurea

Neuroactive steroids	Acebrochol Allopregnanolone (SAGE-547) Alfadolone Alfaxalone Anabolic steroids 3α-Androstanediol Androstenol Androsterone Cholesterol DHDOC 3α-DHP 5α-DHP 5β-DHP DHT Etiocholanolone Ganaxolone Hydroxydione Minaxolone Org 20599 Org 21465 P1-185 Pregnanolone (eltanolone) Progesterone Renanolone SAGE-105 SAGE-217 SAGE-324 SAGE-516 SAGE-689 SAGE-872 Testosterone THDOC

Nonbenzodiazepines	β-Carbolines: Abecarnil Gedocarnil Harmane SL-651,498 ZK-93423; Cyclopyrrolones: Eszopiclone Pagoclone Pazinaclone Suproclone Suriclone Zopiclone; Imidazopyridines: Alpidem DS-1 Necopidem Saripidem Zolpidem; Pyrazolopyrimidines: Divaplon Fasiplon Indiplon Lorediplon Ocinaplon Panadiplon Taniplon Zaleplon; Others: Adipiplon CGS-8216 CGS-9896 CGS-13767 CGS-20625 CL-218,872 CP-615,003 CTP-354 ELB-139 GBLD-345 JM-1232 L-838,417 Lirequinil (Ro41-3696) NS-2664 NS-2710 NS-11394 Pipequaline ROD-188 RWJ-51204 SB-205,384 SX-3228 TGSC01AA TP-003 TPA-023 TP-13 U-89843A U-90042 Viqualine Y-23684

Phenols	Fospropofol Propofol Thymol

Piperidinediones	Glutethimide Methyprylon Piperidione Pyrithyldione

Pyrazolopyridines	Cartazolate Etazolate ICI-190,622 Tracazolate

Quinazolinones	Afloqualone Cloroqualone Diproqualone Etaqualone Mebroqualone Mecloqualone Methaqualone Methylmethaqualone Nitromethaqualone SL-164

Volatiles/gases	Acetone Acetophenone Acetylglycinamide chloral hydrate Aliflurane Benzene Butane Butylene Centalun Chloral Chloral betaine Chloral hydrate Chloroform Cryofluorane Desflurane Dichloralphenazone Dichloromethane Diethyl ether Enflurane Ethyl chloride Ethylene Fluroxene Gasoline Halopropane Halothane Isoflurane Kerosine Methoxyflurane Methoxypropane Nitric oxide Nitrogen Nitrous oxide Norflurane Paraldehyde Propane Propylene Roflurane Sevoflurane Synthane Teflurane Toluene Trichloroethane (methyl chloroform) Trichloroethylene Vinyl ether

Others/unsorted	3-Hydroxybutanal α-EMTBL AA-29504 Avermectins (e.g., ivermectin) Bromide compounds (e.g., lithium bromide, potassium bromide, sodium bromide) Carbamazepine Chloralose Chlormezanone Clomethiazole DEABL Dihydroergolines (e.g., dihydroergocryptine, dihydroergosine, dihydroergotamine, ergoloid (dihydroergotoxine)) DS2 Efavirenz Etazepine Etifoxine Fenamates (e.g., flufenamic acid, mefenamic acid, niflumic acid, tolfenamic acid) Fluoxetine Flupirtine Hopantenic acid Lanthanum Lavender oil Lignans (e.g., 4-O-methylhonokiol, honokiol, magnolol, obovatol) Loreclezole Menthyl isovalerate (validolum) Monastrol Niacin Nicotinamide (niacinamide) Org 25,435 Phenytoin Propanidid Retigabine (ezogabine) Safranal Seproxetine Stiripentol Sulfonylalkanes (e.g., sulfonmethane (sulfonal), tetronal, trional) Terpenoids (e.g., borneol) Topiramate Valerian constituents (e.g., isovaleric acid, isovaleramide, valerenic acid, valerenol) Unsorted benzodiazepine site PAMs: MRK-409 (MK-0343) TCS-1105 TCS-1205

See also: GABAergics

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