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RU-27849

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Pharmaceutical compound
RU-27849
Clinical data
Other namesRU27849; 4-Amino-1,3,4,5-tetrahydrobenz[c,d]indole
Drug classSerotonin receptor modulator;Simplified/partial LSD analogue
ATC code
  • None
Identifiers
  • 1,3,4,5-tetrahydrobenzo[c,d]indol-4-amine
CAS Number
PubChemCID
ChemSpider
CompTox Dashboard(EPA)
Chemical and physical data
FormulaC11H12N2
Molar mass172.231 g·mol−1
3D model (JSmol)
  • C1C(CC2=CNC3=CC=CC1=C23)N
  • InChI=1S/C11H12N2/c12-9-4-7-2-1-3-10-11(7)8(5-9)6-13-10/h1-3,6,9,13H,4-5,12H2
  • Key:JPTWSZJFCLJZJX-UHFFFAOYSA-N

RU-27849 is aserotonin receptor modulator. It can be regarded as a conformationally restrictedtricyclicderivative oftryptamine or a structurally simplified derivative ofLSD. This molecule was developed duringstructure–activity relationship (SAR) studies of LSD.[1][2][3][4]

It showsaffinity forserotonin receptors, including for theserotonin5-HT1,5-HT1A, and5-HT2 receptors (IC50Tooltip half-maximal inhibitory concentration = 267–520 nM, 325–326 nM, and 1,964–2,900 nM, respectively).[1][2][5] RU-27849's affinities for serotonin receptors are similar to but lower than those oftryptamine anddimethyltryptamine (DMT).[1][2] It shows very weak affinity fordopamine receptors and weak associated activity.[3]

The 6-methoxyderivative of RU-27849, which is to RU-27849 as5-methoxytryptamine is to tryptamine, appears to have much higher affinity for serotonin receptors than RU-27849 itself (IC50 ≈ 50 nM).[2][6] A number of other derivatives also exist, includingFHATHBIN (6-hydroxy),RU-28306 (N,N-dimethyl),RU-28251 (N,N-dipropyl),Bay R 1531 (LY-197206; 6-methoxy-N,N-dipropyl),LY-293284 ((4R)-6-acetyl-N,N-dipropyl), andLY-178210 (6-carboxamido-N,N-dipropyl), as well asNDTDI, among others.[3][7][5][8]

RU-27849 was first described in thescientific literature by 1981.[3][1][2][5]

See also

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References

[edit]
  1. ^abcdTaylor EW (1985)."The Development of Indoleamine Derivatives Selective for Subtypes of Serotonin Receptors". The University of Arizona. Retrieved18 March 2025.
  2. ^abcdeTaylor EW, Nikam S, Weck B, Martin A, Nelson D (October 1987). "Relative selectivity of some conformationally constrained tryptamine analogs at 5-HT1, 5-HT1A and 5-HT2 recognition sites".Life Sciences.41 (16):1961–1969.doi:10.1016/0024-3205(87)90749-1.PMID 3657392.The observation that the partial ergolines do not show significantly enhanced potency at any of the 5-HT recognition sites is somewhat unexpected, considering the high affinity shown by full ergoline derivatives such as d-LSD and metergoline for those sites. Consistent results have been reported for the methoxy derivative of RU 27849, which was recently synthesised (23) and reported to have an IC50 of about 50 nM for the inhibition of [3H]5-HT binding, which is at least 5 times less potent than typical reported values for the corresponding non-rigid analog, 5-MeO-TRYP.
  3. ^abcdEuvrard C, Ferland L, Fortin M, Oberlander C, Labrie F, Boissier JR (1981). "Dopaminergic activity of some simplified ergoline derivatives".Drug Development Research.1 (2):151–161.doi:10.1002/ddr.430010208.ISSN 0272-4391.
  4. ^Nichols DE, Oberlender R, McKenna DJ (1991)."Stereochemical Aspects of Hallucinogenesis". In Watson RR (ed.).Biochemistry and Physiology of Substance Abuse. Vol. 3. Boca Raton, Fla.: CRC Press. pp. 1–39.ISBN 978-0-8493-4463-3.OCLC 26748320.
  5. ^abcNelson DL (December 1991). "Structure-activity relationships at 5-HT1A receptors: binding profiles and intrinsic activity".Pharmacology, Biochemistry, and Behavior.40 (4):1041–1051.doi:10.1016/0091-3057(91)90124-k.PMID 1816558.
  6. ^Kruse LI, Meyer MD (1984). "Ergoline synthons. 2. Synthesis of 1,5-dihydrobenz[cd]indol-4(3H)-ones and 1,3,4,5-tetrahydrobenz[cd]indol-4-amines".The Journal of Organic Chemistry.49 (25):4761–4768.doi:10.1021/jo00199a004.ISSN 0022-3263.Lastly, in the context of our original goal of producing a rigid serotonin congener of optimum side-chain conformation, it is interesting to note that 2b (R2 = H2) displaces 3[H]-5-HT from rat frontal cortex with an IC50 of ~50 nM.36
  7. ^Glennon RA (1992). "Concepts for the design of 5-HT 1A serotonin agonists and antagonists".Drug Development Research.26 (3):251–274.doi:10.1002/ddr.430260306.ISSN 0272-4391.
  8. ^Slaughter JL, Harrington MA, Peroutka SJ (1990)."6-substituted tricyclic partial ergoline compounds are selective and potent 5-hydroxytryptamine1A receptor agents".Life Sciences.47 (15):1331–1337.doi:10.1016/0024-3205(90)90197-y.PMID 2172684.

External links

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