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4-MeO-MiPT

From Wikipedia, the free encyclopedia
Chemical compound

Pharmaceutical compound
4-MeO-MiPT
Clinical data
Other names4-OMe-MiPT; 4-Methoxy-N-methyl-N-isopropyltryptamine
Routes of
administration
Oral[1]
Drug classNon-selectiveserotonin receptor agonist;Serotonin5-HT2A receptoragonist;Serotonergic psychedelic;Hallucinogen;Serotonin reuptake inhibitor
ATC code
  • None
Pharmacokinetic data
Onset of action20–40 minutes[1]
Duration of action4–6 hours[1][2]
Identifiers
  • N-[2-(4-methoxy-1H-indol-3-yl)ethyl]-N-methylpropan-2-amine
CAS Number
PubChemCID
ChemSpider
UNII
ChEMBL
CompTox Dashboard(EPA)
Chemical and physical data
FormulaC15H22N2O
Molar mass246.354 g·mol−1
3D model (JSmol)
Melting point80 to 81 °C (176 to 178 °F)
  • CC(N(CCC1=CNC2=C1C(OC)=CC=C2)C)C
  • InChI=1S/C15H22N2O/c1-11(2)17(3)9-8-12-10-16-13-6-5-7-14(18-4)15(12)13/h5-7,10-11,16H,8-9H2,1-4H3
  • Key:BJIWLHLNPTWSGD-UHFFFAOYSA-N checkY
  (verify)

4-MeO-MiPT, also known as4-methoxy-N-methyl-N-isopropyltryptamine, is a lesser-knownpsychedelic drug of thetryptamine and4-methoxytryptamine families.[1] It is the 4-methoxyanalogue ofMiPT and theO-methylether of4-HO-MiPT.[1] The drug is takenorally.[1]

It acts as aserotonin reuptake inhibitor and as anon-selectiveserotonin receptor agonist, including of theserotonin5-HT2A receptor.[3][4] The drug produces psychedelic-like effects in animals.[4]

4-MeO-MiPT was first described byDavid Repke andAlexander Shulgin and colleagues in 1985.[5] It was subsequently further described by Shulgin in his 1997 bookTiHKAL (Tryptamines I Have Known And Loved).[1] The drug was reported as a noveldesigner drug by 2016.[6][2] Very little data exists about the pharmacological properties, metabolism, and toxicity of 4-MeO-MiPT.[1][3]

Use and effects

[edit]

Shulgin found theeffective dose to be 20 to 30 mg (or ~0.4 mg/kg body weight of subject)orally; theonset between ingestion and the first noticeable effects was 20 to 40 minutes, with a listedduration of 4 to 6 hours.[1][5][2] The effects were significantly milder than those of4-HO-MiPT, with 4-MeO-MiPT producingerotic-enhancing effects, and few of thevisuals common withtryptamines.[1][2] Onlineanecdotal reports describe 4-MeO-MiPT as producing mildpsychedelic effects with littlebody load.[2]

Interactions

[edit]
See also:Psychedelic drug § Interactions, andTrip killer § Serotonergic psychedelic antidotes

Pharmacology

[edit]

Pharmacodynamics

[edit]
4-MeO-MiPT activities
TargetAffinity (Ki, nM)
5-HT1A347–731 (Ki)
1,490 (EC50Tooltip half-maximal effective concentration)
99% (EmaxTooltip maximal efficacy)
5-HT2A178 (Ki)
376a (EC50)
63% (
Emax)
5-HT2C510 (Ki)
120a (EC50)
82%a (
Emax)
SERT38 (Ki)
53–57 (IC50)
Notes: The smaller the value, the more avidly the drug interacts with the site.Footnotes:a = Stimulation ofIP1Tooltip inositol phosphate formation.Sources:[3][4]

4-MeO-MiPT acts as aserotonin reuptake inhibitor (SRI) andnon-selectiveserotonin receptor agonist, including of theserotonin5-HT1A,5-HT2A,5-HT2C receptors.[3][4]Affinities towardsreceptors outside of theserotonin receptor family have not yet been assessed.[3][4]

Increasedextracellular concentrations of serotonin, resulting from SERTblockade, similarly may compete at the serotonin 5-HT2A receptor, altering or blunting effects mediated by this receptor, which could potentially explainanecdotal reports of subjective effects beingdose-dependently milder than that of4-HO-MiPT or5-MeO-MiPT.[1][3] This profile makes 4-MeO-MiPT a potential candidate for elucidating the role of SERT blockade in the mechanisms underlyingserotonergic psychedelic action.[3][4]

The drug induces thehead-twitch response, a behavioral proxy of psychedelic effects, in rodents.[4] Itspotency for inducing the head-twitch response in mice is similar to that of 4-HO-MiPT and4-AcO-MiPT, but theefficacy for doing so is markedly lower: 34 head twitches versus around 80 head twitches per 30 minutes for the aforementioned compounds.[4]

Chemistry

[edit]

4-MeO-MiPT issyntheticderivative of thesubstituted tryptamine and4-methoxytryptamine families.[1][3] It is the 4-methoxyanalogue ofN-methyl-N-isopropyltryptamine (MiPT) and theO-methylether of4-HO-MiPT.[1][3]

Synthesis

[edit]

Thechemical synthesis of 4-MeO-MiPT has been described.[1][5]

Analogues

[edit]

Analogues of 4-MeO-MiPT includeN-methyl-N-isopropyltryptamine (MiPT),4-methoxytryptamine (4-MeO-T),4-MeO-DiPT,4-MeO-DMT,4-HO-MiPT,4-AcO-MiPT,5-MeO-MiPT,5-MeO-DMT, andpsilocin (4-HO-DMT), among others.[1][3]

History

[edit]

4-MeO-MiPT was first described in thescientific literature byDavid Repke andAlexander Shulgin and colleagues in 1985.[5] Subsequently, it was described in greater detail byAlexander Shulgin in his 1997 bookTiHKAL (Tryptamines I Have Known Loved) as entry #39.[1] Thepharmacology of 4-MeO-MiPT was studied and described in the 2020s.[3][4] It was reported as a noveldesigner drug by at least 2016.[6][2]

Society and culture

[edit]

Legal status

[edit]

Canada

[edit]

4-MeO-MiPT is not an explicitly nor implicitlycontrolled substance inCanada as of 2025.[7]

United States

[edit]

4-MeO-MiPT is not an explicitlycontrolled substance in theUnited States.[8] However, it could be considered a controlled substance under theFederal Analogue Act if intended for human consumption.

See also

[edit]

References

[edit]
  1. ^abcdefghijklmnopShulgin A,Shulgin A (September 1997).TiHKAL: The Continuation.Berkeley, California:Transform Press.ISBN 0-9630096-9-9.OCLC 38503252.http://www.erowid.org/library/books_online/tihkal/tihkal39.shtml
  2. ^abcdef"4-MeO-MIPT (4-MeOMiPT)".АИПСИН (in Russian). Retrieved2 January 2026.
  3. ^abcdefghijkKozell LB, Eshleman AJ, Swanson TL, Bloom SH, Wolfrum KM, Schmachtenberg JL, et al. (April 2023)."Pharmacologic Activity of Substituted Tryptamines at 5-Hydroxytryptamine (5-HT)2A Receptor (5-HT2AR), 5-HT2CR, 5-HT1AR, and Serotonin Transporter".The Journal of Pharmacology and Experimental Therapeutics.385 (1):62–75.doi:10.1124/jpet.122.001454.PMC 10029822.PMID 36669875.
  4. ^abcdefghiGlatfelter G, Walther D, Partilla J, Chadeayne AR, Manke DR, Baumann MH (2024-06-01)."Pharmacological profiles and psychedelic-like effects of 4-hydroxy-, 4-acetoxy-, and 4-methoxy-N- methyl- N- isopropyltryptamine".The Journal of Pharmacology and Experimental Therapeutics.389: 281.doi:10.1124/jpet.281.923160.ISSN 0022-3565.
  5. ^abcdRepke DB, Grotjahn DB, Shulgin AT (July 1985). "Psychotomimetic N-methyl-N-isopropyltryptamines. Effects of variation of aromatic oxygen substituents".Journal of Medicinal Chemistry.28 (7):892–896.doi:10.1021/jm00145a007.PMID 4009612.
  6. ^abTaschwer M, Ebner E, Schmid M (2016)."Test purchase of new synthetic tryptamines via the Internet: Identity check by GC-MS and separation by HPLC"(PDF).Journal of Applied Pharmaceutical Science:028–034.doi:10.7324/JAPS.2016.600105.ISSN 2231-3354. Retrieved24 October 2025.
  7. ^"Controlled Drugs and Substances Act".Department of Justice Canada. 5 December 2025. Retrieved20 January 2026.
  8. ^Orange Book: List of Controlled Substances and Regulated Chemicals (January 2026)(PDF),United States: U.S.Department of Justice:Drug Enforcement Administration (DEA): Diversion Control Division, January 2026

External links

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