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5-Chloro-αET

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5-Chloro-αET
Clinical data
Other names5-Chloro-AET; 5-Chloro-α-ethyltryptamine; PAL-526; PAL526
Drug classSerotonin releasing agent; Serotonin 5-HT2A receptor agonist
Identifiers
IUPAC name
  • 1-(5-chloro-1H-indol-3-yl)butan-2-amine
PubChem CID
ChemSpider
ChEMBL
Chemical and physical data
FormulaC12H15ClN2
Molar mass222.72 g·mol
3D model (JSmol)
SMILES
  • CCC(CC1=CNC2=C1C=C(C=C2)Cl)N
InChI
  • InChI=1S/C12H15ClN2/c1-2-10(14)5-8-7-15-12-4-3-9(13)6-11(8)12/h3-4,6-7,10,15H,2,5,14H2,1H3
  • Key:LBURKXNSAFJELW-UHFFFAOYSA-N

5-Chloro-αET (code name PAL-526), or 5-chloro-AET, also known as 5-chloro-α-ethyltryptamine, is a serotonergic agent of the tryptamine and α-alkyltryptamine families. It is the derivative of α-ethyltryptamine (αET or AET) with a 5-chloro substitution. Analogues of 5-chloro-αET include 5-fluoro-αET, 5-chloro-αMT, and 5-fluoro-αMT.

The drug is known to act as a potent serotonin releasing agent (SRA) and relatively weak serotonin 5-HT2A receptor near-full agonist. It shows negligible induction of norepinephrine release and very weak influence on dopamine release. 5-Chloro-αET's EC50Tooltip half-maximal effective concentration values are 33.2 nM for serotonin release, 249 nM (EmaxTooltip maximal efficacy = 87%) for serotonin 5-HT2A receptor agonism (7.5-fold lower than for serotonin release), 1,838 nM for dopamine release (55-fold lower than for serotonin release), and >10,000 nM for norepinephrine release. The monoamine release assays were performed in rat brain synaptosomes.

References

  1. ^ Blough BE, Landavazo A, Partilla JS, Decker AM, Page KM, Baumann MH, Rothman RB (October 2014). "Alpha-ethyltryptamines as dual dopamine-serotonin releasers". Bioorg Med Chem Lett. 24 (19): 4754–4758. doi:10.1016/j.bmcl.2014.07.062. PMC 4211607. PMID 25193229.


Monoamine releasing agents
DRAsTooltip Dopamine releasing agents
NRAsTooltip Norepinephrine releasing agents
SRAsTooltip Serotonin releasing agents
Others
See also: Receptor/signaling modulatorsMonoamine reuptake inhibitorsAdrenergicsDopaminergicsSerotonergicsMonoamine metabolism modulatorsMonoamine neurotoxins
Serotonin receptor modulators
5-HT1
5-HT1A
5-HT1B
5-HT1D
5-HT1E
5-HT1F
5-HT2
5-HT2A
5-HT2B
5-HT2C
5-HT37
5-HT3
5-HT4
5-HT5A
5-HT6
5-HT7
Tryptamines
Tryptamines
N-Acetyltryptamines
α-Alkyltryptamines
Triptans
Cyclized tryptamines
Isotryptamines
Related compounds


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