Bicyclic phosphate

Short description: Class of chemical compounds

Bicyclic phosphate is a class of organophosphate compounds that are used as flame retardants, stabilizers and antioxidants. They are also used in spectroscopic studies.[1][2]

Some bicyclic phosphates, such as TBPS, TBPO and IPTBO, are highly toxic. They have toxicity comparable to nerve agents. However, they are not acetylcholinesterase inhibitors.[1] They act as GABA receptor antagonists and have potent convulsant effects.[2][3][4]

## See also

* Convulsant
* TBPS
* TBPO
* IPTBO

## References

1. ↑ 1.0 1.1 Bellet, E. M.; Casida, J. E. (14 December 1973). "Bicyclic Phosphorus Esters: High Toxicity without Cholinesterase Inhibition". Science 182 (4117): 1135–1136. doi:10.1126/science.182.4117.1135. PMID 4356280. Bibcode: 1973Sci...182.1135B.
2. ↑ 2.0 2.1 Gupta, Ramesh C., ed (2009). Handbook of toxicology of chemical warfare agents (1st ed.). London: Academic Press. ISBN 9780123744845.
3. ↑ BOWERY, N. G.; COLLINS, J. F.; HILL, R. G. (17 June 1976). "Bicyclic phosphorus esters that are potent convulsants and GABA antagonists". Nature 261 (5561): 601–603. doi:10.1038/261601a0. PMID 934303. Bibcode: 1976Natur.261..601B.
4. ↑ Ellison, D. Hank (2007). Handbook of chemical and biological warfare agents (2nd ed.). Boca Raton, Fla.: CRC. ISBN 9780849314346.

* v
* t
* e

Convulsants

GABA receptor antagonists|

* Picrotoxin
* Gabazine
* Tetramethylenedisulfotetramine
* Cicutoxin
* Phenylsilatrane
* Tutin
* Pentylenetetrazol
* Thujone
* Endosulfan
* Bicuculline
* Oenanthotoxin
* Fipronil
* EBOB
* BIDN
* Dihydropicrotoxinin
* DMCM
* FG-7142
* Chlorophenylsilatrane
* Bicyclic phosphates (TBPS, TBPO, IPTBO)

GABA synthesis inhibitors|

* Allylglycine
* Crimidine
* Ginkgotoxin
* Toxopyrimidine
* Isoniazid
* 3-Mercaptopropionic acid
* 4-Deoxypyridoxine

Glycine receptor antagonists|

* Strychnine
* Tutin
* Picrotoxin
* Dendrobine

Glutamate receptor agonists|

* AMPA
* NMDA
* Kainic acid
* Domoic acid
* Quisqualic acid
* Tetrazolylglycine

Other|

* Methyl fluoroacetate
* Fluoroethyl fluoroacetate
* Nitrocyclohexane
* Methionine sulfoximine

* v
* t
* e

Neurotoxins

Animal|

* Batrachotoxin
* Bestoxin
* Birtoxin
* Bungarotoxin
* Charybdotoxin
* Conotoxin
* Fasciculin
* Huwentoxin
* Poneratoxin
* Saxitoxin
* Tetrodotoxin
* Vanillotoxin
* Spooky toxin (SsTx)
* Epibatidine
* Zetekitoxin AB
* Dendrotoxin

Bacterial|

* Botulinum toxin
* Tetanospasmin

Cyanotoxins|

* Anatoxin-a
* Anatoxin-a(S)
* BMAA
* Saxitoxin

Plant|

* Bicuculline
* Penitrem A
* Picrotoxin
* Strychnine
* Tutin
* Rotenone
* Ginkgotoxin
* Cicutoxin
* Oenanthotoxin
* Thujone
* Volkensin

Mycotoxins|

* Ibotenic acid
* Muscarine
* Muscimol

Pesticides|

* Fenpropathrin
* Tetramethylenedisulfotetramine
* Bromethalin
* Crimidine
* Methamidophos
* Endosulfan
* Fipronil
* Phenylsilatrane
* Chlorophenylsilatrane
* Sulfuryl fluoride
* Mipafox
* Schradan
* Dimefox

Nerve agents|

* Cyclosarin
* EA-3148
* Novichok agent
* Sarin
* Soman
* Tabun
* VE
* VG
* VM
* VP
* VR
* VX
* GV
* EA-3990
* EA-4056
* T-1123
* Octamethylene-bis(5-dimethylcarbamoxyisoquinolinium bromide)
* Fluorotabun
* Chinese VX
* EA-2192

Bicyclic phosphates|

* TBPS
* TBPO
* IPTBO

Other|

* Dimethylmercury
* Toxopyrimidine
* IDPN

{{Navbox | name = GABA receptor modulators | title = GABA receptor modulators | state = collapsed | bodyclass = hlist | groupstyle = text-align:center;

| group1 = Ionotropic
|  list1 = {{Navbox|subgroup
| groupstyle = text-align:center
| groupwidth = 5em

| group1 = GABAA
| list1  =

* Agonists: (+)-Catechin
* Bamaluzole
* Barbiturates (e.g., phenobarbital)
* BL-1020
* 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)
* Methylglyoxal
* Monastrol
* Muscimol
* Nefiracetam
* Neuroactive steroids (e.g., allopregnanolone)
* Org 20599
* PF-6372865
* Phenibut
* Picamilon
* P4S
* Progabide
* Propofol
* Quisqualamine
* SL-75102
* TACA
* TAMP
* Terpenoids (e.g., borneol)
* Thiomuscimol
* Tolgabide
* ZAPA

* Positive modulators (abridged; see here for a full list): α-EMTBL
* Alcohols (e.g., ethanol)
* 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)<!--PMID: 9776662-->
* Lanthanum
* Loreclezole
* Monastrol
* Neuroactive steroids (e.g., allopregnanolone, [[Chemistry:Cholecholesterol]], THDOC)
* 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, [[Chemistry:Diethyl diethyl ether, Parparaldehyde]], sevoflurane)

* Antagonists: Bicuculline
* Coriamyrtin
* Dihydrosecurinine
* Gabazine (SR-95531)
* Hydrastine
* Hyenachin (mellitoxin)
* PHP-501
* Pitrazepin
* Securinine
* Sinomenine
* SR-42641
* SR-95103
* Thiocolchicoside
* Tutin

* Negative modulators: 1,3M1B
* 3M2B
* 11-Ketoprogesterone
* 17-Phenylandrostenol
* 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 (123I)
* IPTBO
* Isopregnanolone (sepranolone)
* L-655,708
* Laudanosine
* Leptazol
* Lindane
* MaxiPost
* Morphine
* Morphine-3-glucuronide
* MRK-016
* Naloxone
* Naltrexone
* Nicardipine
* Nonsteroidal antiandrogens (e.g., [[apalutamide, [[Chemistry:Bicalutbicalutamide, Enzalutenzalutamide, Chemistry:Flutamide|flut]]amide]], 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

| group2 = GABAA-ρ
| list2  =

* Agonists: BL-1020
* CACA
* CAMP
* Homohypotaurine
* GABA
* GABOB
* Ibotenic acid
* Isoguvacine
* Muscimol
* N4-Chloroacetylcytosine arabinoside
* Picamilon
* Progabide
* TACA
* TAMP
* Thiomuscimol
* Tolgabide

* Positive modulators: Allopregnanolone
* Alphaxolone
* ATHDOC
* 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

* Negative modulators: 5α-Dihydroprogesterone
* Bilobalide
* Loreclezole
* Picrotoxin (picrotin, picrotoxinin)
* Pregnanolone
* ROD-188
* THDOC
* Zinc

| group2 = Metabotropic

| list2 =

GABAB|

* Agonists: 1,4-Butanediol
* 4-Fluorophenibut
* Aceburic acid
* Arbaclofen
* Arbaclofen placarbil
* Baclofen
* BL-1020
* GABA
* Gabamide
* GABOB
* GBL
* GHB
* GHBAL
* GHV
* GVL
* Isovaline
* Lesogaberan
* Phenibut
* Picamilon
* Progabide
* Sodium oxybate
* SKF-97,541
* SL 75102
* Tolgabide
* Tolibut

* Positive modulators: ADX-71441
* BHF-177
* BHFF
* BSPP
* CGP-7930
* CGP-13501
* GS-39783
* rac-BHFF
* KK-92A

* 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

* Negative modulators: Compound 14

|

| below =

See also
Receptor/signaling modulators
GABAA receptor positive modulators
GABA metabolism/transport modulators

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*[GABA]: γ-Aminobutyric acid
*[GABAA]: γ-Aminobutyric acid A receptor
*[GABAA-ρ]: γ-Aminobutyric acid A-rho receptor
*[GABAB]: γ-Aminobutyric acid B receptor