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LA-MeO

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(Redirected fromLysergic acid ethyl-2-methoxyethylamide)

Pharmaceutical compound
LA-MeO
Clinical data
Other namesLSD-MeO; Lysergic acid ethyl-2-methoxyethylamide;N-Ethyl-N-(2-methoxyethyl)lysergamide; LEOO-methyl ether;N-Ethyl-N-(2-methoxyethyl)-6-methyl-9,10-didehydroergoline-8β-carboxamide
Drug classSerotonin receptor modulator;Serotonin 5-HT2A receptor agonist
ATC code
  • None
Identifiers
  • (6aR,9R)-N-ethyl-N-(2-methoxyethyl)-7-methyl-4,6,6a,7,8,9-hexahydroindolo[4,3-fg]quinoline-9-carboxamide
Chemical and physical data
FormulaC21H27N3O2
Molar mass353.466 g·mol−1
3D model (JSmol)
  • COCCN(C(=O)[C@H]1CN(C)[C@H]2C(=C1)c1cccc3c1c(C2)c[nH]3)CC
  • InChI=1S/C21H27N3O2/c1-4-24(8-9-26-3)21(25)15-10-17-16-6-5-7-18-20(16)14(12-22-18)11-19(17)23(2)13-15/h5-7,10,12,15,19,22H,4,8-9,11,13H2,1-3H3/t15-,19-/m1/s1
  • Key:BQPPMBUEDZCBOR-DNVCBOLYSA-N

LA-MeO, also known aslysergic acid ethyl-2-methoxyethylamide or asN-ethyl-N-(2-methoxyethyl)lysergamide, is aserotonin receptor modulator of thelysergamide family related tolysergic acid diethylamide (LSD).[1][2] It is theO-methyletherderivative of the LSDmetabolitelysergic acid ethyl-2-hydroxyethylamide (LEO).[1][2]

The drug shows highaffinity for theserotonin5-HT1A,5-HT2A, and5-HT2C receptors (Ki = 4.0 nM, 7.1 nM, and 7.8 nM, respectively).[1][2] It acts as apotentpartial agonist of theserotonin5-HT2A receptor similarly to LSD, with anEC50Tooltip half-maximal effective concentration of 30.3 nM and anEmaxTooltip maximal efficacy of 29.6% (relative to 8.4 nM and 22.4% in the case of LSD, respectively).[1][2]

LA-MeO was first described in thescientific literature by Jason C. Parrish of the lab ofDavid E. Nichols atPurdue University by 2007.[1][2]

See also

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References

[edit]
  1. ^abcdeNichols DE (2012)."Structure–activity relationships of serotonin 5-HT 2A agonists".Wiley Interdisciplinary Reviews: Membrane Transport and Signaling.1 (5):559–579.doi:10.1002/wmts.42.ISSN 2190-460X. Retrieved22 March 2025.
  2. ^abcdeParrish JC (30 October 2007).Toward a molecular understanding of hallucinogen action (Ph.D. thesis). Purdue University – via Purdue e-Pubs.

External links

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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
Ergolines
(incl.lysergines)
Clavines
(6,8-dimethylergolines)
Lysergamides
(lysergic acid amides)
Ergopeptines
(peptide ergolines)
Partial ergolines
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