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TCB-2

From Wikipedia, the free encyclopedia
Potent hallucinogenic drug discovered in 2006

Pharmaceutical compound
TCB-2
Clinical data
Routes of
administration
Oral
ATC code
  • none
Legal status
Legal status
  • In General Unscheduled
Identifiers
  • [(7R)-3-Bromo-2,5-dimethoxy-bicyclo[4.2.0]octa-1,3,5-trien-7-yl]methanamine
CAS Number
PubChemCID
ChemSpider
UNII
ChEMBL
CompTox Dashboard(EPA)
Chemical and physical data
FormulaC11H14BrNO2
Molar mass272.142 g·mol−1
3D model (JSmol)
  • COc1c(Br)cc(OC)c2c1CC2CN
  • InChI=1S/C11H14BrNO2/c1-14-9-4-8(12)11(15-2)7-3-6(5-13)10(7)9/h4,6H,3,5,13H2,1-2H3/t6-/m0/s1
  • Key:MPBCKKVERDTCEL-LURJTMIESA-N
  (verify)

TCB-2 is ahallucinogen discovered in 2006 by Thomas McLean working in the lab ofDavid Nichols atPurdue University.[1] It is aconformationally-restrictedderivative of thephenethylamine2C-B, also a hallucinogen, and acts as apotentagonist for the5-HT2A and5-HT2Creceptors with aKi of 0.26 nM at the human 5-HT2A receptor.

Indrug-substitution experiments in rats, TCB-2 was found to be of similarpotency to bothLSD andBromo-DragonFLY, ranking it among the most potent phenethylamine hallucinogens yet discovered.[1] This high potency andselectivity has made TCB-2 useful for distinguishing 5-HT2A receptor-mediated responses from those produced by other similar receptors.[2]

TCB-2 has similar but not identical effects in animals to related phenethylamine hallucinogens such asDOI, and has been used for studying how the function of the 5-HT2A receptor differs from that of otherserotonin receptors in a number of animal models, such as studies ofcocaine addiction andneuropathic pain.[3][4][5][6] It has also been found to produce rapidantidepressant-,anti-anhedonic-, andanxiolytic-like effects in animals.[7]

See also

[edit]

References

[edit]
  1. ^abMcLean TH, Parrish JC, Braden MR, Marona-Lewicka D, Gallardo-Godoy A, Nichols DE (September 2006). "1-Aminomethylbenzocycloalkanes: conformationally restricted hallucinogenic phenethylamine analogues as functionally selective 5-HT2A receptor agonists".Journal of Medicinal Chemistry.49 (19):5794–803.CiteSeerX 10.1.1.688.9849.doi:10.1021/jm060656o.PMID 16970404.
  2. ^Chang CW, Poteet E, Schetz JA, Gümüş ZH, Weinstein H (2009)."Towards a quantitative representation of the cell signaling mechanisms of hallucinogens: measurement and mathematical modeling of 5-HT1A and 5-HT2A receptor-mediated ERK1/2 activation".Neuropharmacology.56 (Suppl 1):213–25.doi:10.1016/j.neuropharm.2008.07.049.PMC 2635340.PMID 18762202.
  3. ^Fox MA, French HT, LaPorte JL, Blackler AR, Murphy DL (September 2010). "The serotonin 5-HT(2A) receptor agonist TCB-2: a behavioral and neurophysiological analysis".Psychopharmacology.212 (1):13–23.doi:10.1007/s00213-009-1694-1.PMID 19823806.S2CID 22499760.
  4. ^Aira Z, Buesa I, Salgueiro M, Bilbao J, Aguilera L, Zimmermann M, Azkue JJ (July 2010). "Subtype-specific changes in 5-HT receptor-mediated modulation of C fibre-evoked spinal field potentials are triggered by peripheral nerve injury".Neuroscience.168 (3):831–41.doi:10.1016/j.neuroscience.2010.04.032.PMID 20412834.S2CID 207248287.
  5. ^Katsidoni V, Apazoglou K, Panagis G (February 2011). "Role of serotonin 5-HT2A and 5-HT2C receptors on brain stimulation reward and the reward-facilitating effect of cocaine".Psychopharmacology.213 (2–3):337–54.doi:10.1007/s00213-010-1887-7.PMID 20577718.S2CID 1580337.
  6. ^Zhang G, Ásgeirsdóttir HN, Cohen SJ, Munchow AH, Barrera MP, Stackman RW (January 2013)."Stimulation of serotonin 2A receptors facilitates consolidation and extinction of fear memory in C57BL/6J mice".Neuropharmacology.64 (1):403–13.doi:10.1016/j.neuropharm.2012.06.007.PMC 3477617.PMID 22722027.
  7. ^Koike H, Horinokita I, Suzuki M, Futamura T (December 2022)."ACNP 61st Annual Meeting: Poster Abstracts P271-P540: P360. A Potent 5-HT2A Receptor Agonist TCB-2 Exerts Rapid Antidepressant-Like and Anxiolytic-Like Effects in Mice".Neuropsychopharmacology.47 (Suppl 1): 220–370 (270–271).doi:10.1038/s41386-022-01485-0.PMC 9714399.PMID 36456694.
Tryptamines
No ring subs.
4-Hydroxytryptamines
5-Hydroxytryptamines
5-Methoxytryptamines
Other ring subs.
α-Alkyltryptamines
Others
Cyclized
Bioisosteres
Phenethylamines
Scalines
2C-x
3C-x
DOx
4C-x
Ψ-PEA
MDxx
FLY
25x-NB (NBOMes)
Others
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Lysergamides
  • Bioisosteres:JRT
Others
Natural sources
5-HT1
5-HT1A
5-HT1B
5-HT1D
5-HT1E
5-HT1F
5-HT2
5-HT2A
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5-HT2C
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5-HT3
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5-HT5A
5-HT6
5-HT7
Phenethylamines
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(and further-extended)
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(and close relatives)
Cyclized
phenethylamines
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(aminorexes)
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tetrahydroisoquinolines
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Related compounds
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