Norpsilocin

Norpsilocin
Clinical data
Other names
  • 4-HO-NMT
  • 4-Hydroxy-N-methyltryptamine
  • N-Desmethylpsilocin
  • AS-63499
  • PLZ-1017
Identifiers
  • 3-[2-(methylamino)ethyl]-1H-indol-4-ol
CAS Number
PubChem CID
ChemSpider
ChEMBL
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC11H14N2O
Molar mass190.246 g·mol−1
3D model (JSmol)
  • CNCCC1=CNC2=C1C(=CC=C2)O
  • InChI=1S/C11H14N2O/c1-12-6-5-8-7-13-9-3-2-4-10(14)11(8)9/h2-4,7,12-14H,5-6H2,1H3
  • Key:MTJOWJUQGYWRHT-UHFFFAOYSA-N

Norpsilocin, also known as 4-hydroxy-N-methyltryptamine (4-HO-NMT), is a tryptamine alkaloid recently discovered in 2017 in the psychedelic mushroom Psilocybe cubensis.[1][2] It is hypothesized to be a dephosphorylated metabolite of baeocystin.[2]

Norpsilocin was found to be a near full agonist of the 5-HT2A receptor and was found to be more potent than psilocin.[3][4] It also has affinity for other serotonin receptors.[5] Moreover, it has been found to cross the blood–brain barrier in animals and to have good metabolic stability similarly to psilocin.[5]

Surprisingly however, norpsilocin failed to induce the head-twitch response, a behavioral proxy of psychedelic effects, in animals.[5] Likewise, norbaeocystin and aeruginascin failed to induce the head-twitch response.[5] Only psilocybin was effective in this regard.[5] In any case, norbaeocystin showed antidepressant-like activity (forced swim test) similarly to psilocybin and fluoxetine in spite of its putative non-hallucinogenic nature.[5] Norpsilocin itself was not tested in this assay.[5]

Norpsilocin is being evaluated under the developmental code name PLZ-1017 for the possible treatment of pervasive developmental disorders in children.[6]

See also

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References

[edit]
  1. ^ Lenz C, Wick J, Hoffmeister D (October 2017). "Identification of ω-N-Methyl-4-hydroxytryptamine (Norpsilocin) as a Psilocybe Natural Product". Journal of Natural Products. 80 (10): 2835–2838. doi:10.1021/acs.jnatprod.7b00407. PMID 28929753.
  2. ^ a b "Two New Crystalline Forms of Norpsilocin".
  3. ^ "Study Finds Norpsilocin is More Potent Than Psilocin at 5-HT2A".
  4. ^ Sherwood AM, Halberstadt AL, Klein AK, McCorvy JD, Kaylo KW, Kargbo RB, Meisenheimer P (February 2020). "Synthesis and Biological Evaluation of Tryptamines Found in Hallucinogenic Mushrooms: Norbaeocystin, Baeocystin, Norpsilocin, and Aeruginascin". Journal of Natural Products. 83 (2): 461–467. doi:10.1021/acs.jnatprod.9b01061. PMID 32077284.
  5. ^ a b c d e f g Rakoczy RJ, Runge GN, Sen AK, Sandoval O, Wells HG, Nguyen Q, Roberts BR, Sciortino JH, Gibbons WJ, Friedberg LM, Jones JA, McMurray MS (October 2024). "Pharmacological and behavioural effects of tryptamines present in psilocybin-containing mushrooms". Br J Pharmacol. 181 (19): 3627–3641. doi:10.1111/bph.16466. PMID 38825326.
  6. ^ "Norpsilocin - Pilz Bioscience". AdisInsight. 19 January 2021. Retrieved 27 October 2024.
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