Chemistry:N-Isopropyltryptamine

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N-Isopropyltryptamine
Clinical data
Other namesNiPT; IPT; N-iP-T
Drug classSerotonin receptor agonist; Serotonin 5-HT2A receptor agonist
ATC code
  • None
Identifiers
CAS Number
PubChem CID
ChemSpider
Chemical and physical data
FormulaC13H18N2
Molar mass202.301 g·mol−1
3D model (JSmol)

N-Isopropyltryptamine (NiPT) is a serotonin receptor agonist of the tryptamine family.[1][2]

Use and effects

According to Alexander Shulgin, no active dose level of NiPT has yet been found in humans.[1]

Pharmacology

Pharmacodynamics

NiPT acts as a potent full agonist of the serotonin 5-HT2A receptor, whereas it is inactive as an agonist of the serotonin 5-HT1A receptor.[2] The drug is also a weak serotonin reuptake inhibitor.[2]

Chemistry

Analogues

Analogues of NiPT include N-methyltryptamine (NET), N-ethyltryptamine, N-sec-butyltryptamine (NsBT), N-tert-butyltryptamine (NtBT), and diisopropyltryptamine (DiPT), among others.[1]

Derivatives

Some derivatives of NiPT include 4-HO-NiPT, 5-HO-NiPT, and 5-MeO-NiPT, among others.[3][4][5][6] 5-MeO-NiPT is likewise a serotonin receptor agonist.[7][5][2] It is a potent full agonist or high-efficacy partial agonist of the serotonin 5-HT1A, 5-HT2A, 5-HT2B, and 5-HT2C receptors.[7][5][2] In contrast to 5-MeO-NMT and 5-MeO-NET, which are inactive in the test, 5-MeO-NiPT induces the head-twitch response, a behavioral proxy of psychedelic effects, in rodents, and hence may be hallucinogenic in humans.[7][5] 4-HO-NiPT is also a serotonin receptor agonist and produces the head-twitch response in rodents as well.[6]

See also

References

  1. 1.0 1.1 1.2 Alexander T. Shulgin; Ann Shulgin (1997). TiHKAL: The Continuation (1st ed.). Berkeley, CA: Transform Press. ISBN 978-0-9630096-9-2. OCLC 38503252. https://books.google.com/books?id=jl_ik66IumUC. Retrieved 30 January 2025. "The homologue with only one isopropyl group on the nitrogen, N-isopropyltryptamine or NIPT IPT, has been made according to the same recipe, with the indol-3-yl N-isopropylglyoxalylamide (mp 199–200 °C from methanol) obtained in a 98% yield, and the amine hydrochloride (mp 245–246 °C from benzene/methanol) obtained in a 60% yield. The free base distilled at 130–140 °C at 0.1 mm/Hg to give a fraction that spontaneously crystallized to a very hard solid. MS (in m/z): C4H10N+ 72 (100%); indolemethylene+ 131 (60%), 130 (32%); parent ion 202 (3%). No active level has yet been found in man, to my knowledge." 
  2. 2.0 2.1 2.2 2.3 2.4 "Interaction of psychoactive tryptamines with biogenic amine transporters and serotonin receptor subtypes". Psychopharmacology (Berlin) 231 (21): 4135–4144. October 2014. doi:10.1007/s00213-014-3557-7. PMID 24800892. 
  3. "The hallucinogenic world of tryptamines: an updated review". Archives of Toxicology 89 (8): 1151–1173. August 2015. doi:10.1007/s00204-015-1513-x. PMID 25877327. Bibcode2015ArTox..89.1151A. https://psilosybiini.info/paperit/The%20hallucinogenic%20world%20of%20tryptamines,%20an%20updated%20review%20(Ara%FAjo%20et%20al.,%202015).pdf. 
  4. "Synthesis and structure of 4-hy-droxy-N-iso-propyl-tryptamine (4-HO-NiPT) and its precursors". Acta Crystallographica Section E: Crystallographic Communications 79 (Pt 4): 280–286. March 2023. doi:10.1107/S2056989023002098. PMID 37057027. Bibcode2023AcCrE..79..280L. 
  5. 5.0 5.1 5.2 5.3 "Structure-activity relationships of serotonergic 5-MeO-DMT derivatives: insights into psychoactive and thermoregulatory properties". Molecular Psychiatry 29 (8): 2346–2358. August 2024. doi:10.1038/s41380-024-02506-8. PMID 38486047. 
  6. 6.0 6.1 "Psychedelic-like Activity of Norpsilocin Analogues". ACS Chemical Neuroscience 15 (2): 315–327. January 2024. doi:10.1021/acschemneuro.3c00610. PMID 38189238. 
  7. 7.0 7.1 7.2 "Serotonin 1A Receptors Modulate Serotonin 2A Receptor-Mediated Behavioral Effects of 5-Methoxy-N,N-dimethyltryptamine Analogs in Mice". ACS Chemical Neuroscience 15 (24): 4458–4477. December 2024. doi:10.1021/acschemneuro.4c00513. PMID 39636099.