1F-LSD

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Not to be confused with 1-Formyl-LSD.
1F-LSD
Clinical data
Other names1-(Furan-2-carbonyl)-LSD; 1-(2-Furoyl)-LSD; SYN-L-005; N,N-Diethyl-1-(furan-2-carbonyl)-6-methyl-9,10-didehydroergoline-8β-carboxamide
Routes of
administration		Oral
Drug classSerotonin receptor agonist; Serotonin 5-HT2A receptor agonist; Serotonergic psychedelic; Hallucinogen
ATC code
  • None
Identifiers
  • (6aR,9R)-N,N-diethyl-4-(furan-2-carbonyl)-7-methyl-6,6a,8,9-tetrahydroindolo[4,3-fg]quinoline-9-carboxamide
PubChem CID
E number{{#property:P628}}
CompTox Dashboard (EPA)
  • {{#property:P3117}}Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).
ECHA InfoCard{{#property:P2566}}Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).
Chemical and physical data
FormulaC25H27N3O3
Molar mass417.509 g·mol−1
3D model (JSmol)
  • CCN(CC)C(=O)[C@H]1CN([C@@H]2CC3=CN(C4=CC=CC(=C34)C2=C1)C(=O)C5=CC=CO5)C
  • InChI=1S/C25H27N3O3/c1-4-27(5-2)24(29)17-12-19-18-8-6-9-20-23(18)16(13-21(19)26(3)14-17)15-28(20)25(30)22-10-7-11-31-22/h6-12,15,17,21H,4-5,13-14H2,1-3H3/t17-,21-/m1/s1
  • Key:VHDXVHVDSPZVCI-DYESRHJHSA-N

1F-LSD, also known as 1-(furan-2-carbonyl)-LSD, 1-(2-furoyl)-LSD, or SYN-L-005, is a psychedelic drug of the lysergamide family related to lysergic acid diethylamide (LSD).[1][2] It is thought to act as a prodrug of LSD.[1][2] The drug interacts with serotonin receptors, including the serotonin 5-HT2A receptor, and produces the head-twitch response in rodents, with about 3-fold lower potency than LSD.[1] It hydrolyzes into LSD in rodents.[1] 1F-LSD was patented in 2024[2] and was first described in the scientific literature in 2025.[1] It has been encountered as a novel designer drug in Germany and Japan.[1]

Use and effects

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See also: LSD § Uses, and LSD § Effects

Interactions

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See also: Psychedelic drug § Interactions, and Trip killer § Serotonergic psychedelic antidotes

Chemistry

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Analogues

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Analogues of 1F-LSD include 1P-LSD, 1cP-LSD, 1B-LSD, 1S-LSD, and 1T-LSD, among others.

See also

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References

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  1. ^ a b c d e f Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  2. ^ a b c WO 2024/028495, Stratford A, Williamson JP, "Prodrugs of Substituted Ergolines", published Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)., assigned to Synex Holdings BV 
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