Lysergic acid 2,4-dimethylazetidide

Lysergic acid 2,4-dimethylazetidide (LA-SS-Az, LSZ) is an analog of LSD developed by the team led by David E. Nichols at Purdue University.[1][2] It was developed as a rigid analog of LSD with the diethylamide group constrained into an azetidine ring in order to map the binding site at the 5-HT2A receptor. There are three possible stereoisomers around the azetidine ring, with the (S,S)-(+) isomer being the most active, slightly more potent than LSD itself in drug discrimination tests using trained rats.[3]

"LSZ" redirects here. For other uses, see LSZ (disambiguation).
Lysergic acid 2,4-dimethylazetidide
Clinical data
Other namesLysergic acid 2,4-dimethylazetidine, Diazedine, Lambda, LSZ
Routes of
administration		Oral
Legal status
Legal status
Identifiers
​
  • freebase: (S,S)-isomer, freebase
  • tartrate salt: (S,S)-isomer, tartrate salt
CAS Number
PubChem CID
ChemSpider
UNII
Chemical and physical data
FormulaC21H25N3O
Molar mass335.451 g·mol−1
3D model (JSmol)
 NY (what is this?)  (verify)

There have been several unconfirmed reports of lysergic acid 2,4-dimethylazetidide being synthesized in illicit laboratories and distributed on blotter paper or in liquid solution under names such as "diazedine" and "λ".[4][5]

In 2013 LSZ also appeared on some designer drug and research chemical markets in the UK.[6][7] LSZ later gained international popularity through a small cluster of mail-order novel psychedelic shops that appeared in 2012.[8]

On June 10, 2014 the UK Advisory Council on the Misuse of Drugs (ACMD) recommended that LSZ be specifically named in the UK Misuse of Drugs Act as a class A drug despite not identifying any harm associated with its use.[7] The UK Home office accepted this advice and announced a ban of the substance to be enacted on 6 January 2015 as part of The Misuse of Drugs Act 1971 (Amendment) (No. 2) Order 2014.

LSZ is illegal in Switzerland as of December 2015,[9] in Denmark as of May 2015,[10] and in Sweden as of January 26, 2016.[11]

See also

References
  1. Brandt SD, Kavanagh PV, Westphal F, Elliott SP, Wallach J, Colestock T, et al. (January 2017). "6 -allyl-6-norlysergic acid diethylamide (AL-LAD) and (2'S,4'S)-lysergic acid 2,4-dimethylazetidide (LSZ)" (PDF). Drug Testing and Analysis. 9 (1): 38–50. doi:10.1002/dta.1985. PMC 5411264. PMID 27265891.
  2. Schifano F, Orsolini L, Papanti D, Corkery J (June 2016). "NPS: Medical Consequences Associated with Their Intake". Neuropharmacology of New Psychoactive Substances (NPS). Current Topics in Behavioral Neurosciences. 32. Springer International Publishing. pp. 351–380. doi:10.1007/7854_2016_15. ISBN 978-3-319-52442-9. OCLC 643052237. PMID 27272067.
  3. Nichols DE, Frescas S, Marona-Lewicka D, Kurrasch-Orbaugh DM (September 2002). "Lysergamides of isomeric 2,4-dimethylazetidines map the binding orientation of the diethylamide moiety in the potent hallucinogenic agent N,N-diethyllysergamide (LSD)" (PDF). Journal of Medicinal Chemistry. 45 (19): 4344–9. doi:10.1021/jm020153s. PMID 12213075.
  4. Morris H (1 May 2011). "Life Is a Cosmic Giggle on the Breath of the Universe". Vice Magazine. Retrieved 2011-06-15.
  5. Cole K (2005). Lysergic. Indianapolis: Dog Ear Publishing. ISBN 978-1598580075.
  6. LSZ Thread. UKChemicalResearch.org
  7. ACMD (10 June 2014). "Update of the Generic Definition for Tryptamines" (PDF). UK Home Office. p. 12. Retrieved 10 June 2014.
  8. Power M (2014-01-29). "The Drug Revolution That No One Can Stop".
  9. "Verordnung des EDI über die Verzeichnisse der Betäubungsmittel, psychotropen Stoffe, Vorläuferstoffe und Hilfschemikalien" (in German). Der Bundesrat.
  10. "Bekendtgørelse om euforiserende stoffer - ni nye stoffer tilføjet" (in Danish). Lægemiddelstyrelsen. 31 August 2015.
  11. "31 nya ämnen kan klassas som narkotika eller hälsofarlig vara" (in Swedish). Folkhälsomyndigheten. November 2015.
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