Movatterモバイル変換


[0]ホーム

URL:


Jump to content
WikipediaThe Free Encyclopedia
Search

Lysergic acid 2-butylamide

From Wikipedia, the free encyclopedia
(Redirected fromLysergic acid 2-butyl amide)
Chemical compound
Pharmaceutical compound
LSB
Clinical data
Other namesLysergic acidsec-butyl amide;N-(Butan-2-yl)lysergamide;N-sec-Butyllysergamide; NSB-LA; LASBA; (8β)-6-Methyl-N-[(1R)-1-methylpropyl]-9,10-didehydroergoline-8-carboxamide
Drug classSerotonin receptor modulator;5-HT2A receptor agonist
Legal status
Legal status
Identifiers
  • (6aR,9R)-N-butan-2-yl-7-methyl-6,6a,8,9-tetrahydro-4H-indolo[4,3-fg]quinoline-9-carboxamide
CAS Number
  • 137765-82-3 checkY (R,R) isomer, freebase
    137765-83-4 (R,R) isomer, maleate salt
PubChemCID
ChemSpider
UNII
CompTox Dashboard(EPA)
Chemical and physical data
FormulaC20H25N3O
Molar mass323.440 g·mol−1
3D model (JSmol)
  • CN1C[C@@H](C(N[C@H](C)CC)=O)C=C2C1CC3=CNC4=C3C2=CC=C4
  • InChI=1S/C20H25N3O/c1-4-12(2)22-20(24)14-8-16-15-6-5-7-17-19(15)13(10-21-17)9-18(16)23(3)11-14/h5-8,10,12,14,18,21H,4,9,11H2,1-3H3,(H,22,24)/t12-,14-,18-/m1/s1 ☒N
  • Key:NYFSQPDQLFFBRA-RVZJWNSFSA-N ☒N
 ☒NcheckY (what is this?)  (verify)

Lysergic acid 2-butylamide (LSB orLASBA), also known as2-butyllysergamide, is an analogue ofLSD originally developed by Richard Pioch atEli Lilly in the 1950s,[2] but mostly publicised through research conducted by the team led byDavid E. Nichols atPurdue University. It is astructural isomer of LSD, with the two ethyl groups on the amide nitrogen having been replaced by a single sec-butyl group, joined at the 2-position.[3]

It is one of the few lysergamide derivatives to exceed the potency of LSD in animal drug discrimination assays, with the (R) isomer having an ED50 of 33nmol/kg for producing drug-appropriate responding, vs 48nmol/kg for LSD itself. The corresponding (R)-2-pentyl analogue has higherbinding affinity for the 5-HT1A and 5-HT2A receptors, but is less potent in producing drug-appropriate responding, suggesting that the butyl compound has a higherefficacy at the receptor target.[4] The drug discrimination assay for LSD in rats involves both5-HT1A and5-HT2A mediated components, and while LSB is more potent than LSD as a 5-HT1A agonist, it is slightly less potent as a 5-HT2A agonist, and so would probably be slightly less potent than LSD as a hallucinogen in humans.

The main use for this drug has been in studies of the binding site at the 5-HT2Areceptor through which LSD exerts most of its pharmacological effects,[5] with the stereoselective activity of these unsymmetric monoalkyl lysergamides foreshadowing the subsequent development of compounds such aslysergic acid 2,4-dimethylazetidide (LSZ).

See also

[edit]

References

[edit]
  1. ^"Arrêté du 20 mai 2021 modifiant l'arrêté du 22 février 1990 fixant la liste des substances classées comme stupéfiants".www.legifrance.gouv.fr (in French). 20 May 2021.
  2. ^US patent 2997470, Richard P. Pioch, "LYSERGIC ACID AMIDES", published 1956-03-05, issued 1961-08-22 
  3. ^Oberlender R, Pfaff RC, Johnson MP, Huang XM, Nichols DE (January 1992). "Stereoselective LSD-like activity in d-lysergic acid amides of (R)- and (S)-2-aminobutane".Journal of Medicinal Chemistry.35 (2):203–11.doi:10.1021/jm00080a001.PMID 1732537.
  4. ^Monte AP, Marona-Lewicka D, Kanthasamy A, Sanders-Bush E, Nichols DE (March 1995). "Stereoselective LSD-like activity in a series of d-lysergic acid amides of (R)- and (S)-2-aminoalkanes".Journal of Medicinal Chemistry.38 (6):958–66.doi:10.1021/jm00006a015.PMID 7699712.
  5. ^David E. Nichols. LSD and Its Lysergamide Cousins.The Heffter Review of Psychedelic Research. 2001;2:80-87.

External links

[edit]
Tryptamines
No ring subs.
4-Hydroxytryptamines
5-Hydroxytryptamines
5-Methoxytryptamines
Other ring subs.
α-Alkyltryptamines
Others
Cyclized
Bioisosteres
Phenethylamines
Scalines
2C-x
3C-x
DOx
4C-x
Ψ-PEA
MDxx
FLY
25x-NB (NBOMes)
Others
Cyclized
Lysergamides
  • Bioisosteres:JRT
Others
Natural sources
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
Related compounds
Natural sources
Retrieved from "https://en.wikipedia.org/w/index.php?title=Lysergic_acid_2-butylamide&oldid=1320168624"
Categories:
Hidden categories:

[8]ページ先頭

©2009-2025 Movatter.jp