25B-NBOH

25B-NBOH
Legal status
Legal status	DE: NpSG (Industrial and scientific use only); UK: Class A;
Identifiers
	IUPAC name 2-({[2-(4-bromo-2,5-dimethoxyphenyl)ethyl]amino}methyl)phenol;
CAS Number	1335331-46-8;
ChemSpider	58191433;
Chemical and physical data
Formula	C17H20BrNO3
Molar mass	365.06 g/mol g·mol−1
3D model (JSmol)	Interactive image;
	SMILES BrC2=CC(=C(CCNCC1=C(C=CC=C1)O)C=C2OC)OC;
	InChI InChI=1S/C17H20BrNO3/c1-21-16-10-14(18)17(22-2)9-12(16)7-8-19-11-13-5-3-4-6-15(13)20/h3-6,9-10,19-20H,7-8,11H2,1-2H3; Key:RSUNJYKZRKIBNB-UHFFFAOYSA-N;

25B-NBOH (2C-B-NBOH, NBOH-2C-B) is a derivative of the phenethylamine derived hallucinogen 2C-B which has been sold as a designer drug. It acts as a potent serotonin receptor agonist with similar affinity to the better-known compound 25B-NBOMe at 5-HT_2A and 5-HT_2C receptors with pK_is values of 8.3 and 9.4, respectively.^[1]^[2]^[3]^[4]^[5]^[6]

Legal status

Sweden

The Riksdag added 25B-NBOH to Narcotic Drugs Punishments Act under swedish schedule I ("substances, plant materials and fungi which normally do not have medical use") as of January 26, 2016, published by Medical Products Agency (MPA) in regulation HSLF-FS 2015:35 listed as 25B-NBOH, and 2-([2-(4-bromo-2,5-dimetoxifenyl)etylamino]metyl)fenol.^[7]

United Kingdom

This substance is a Class A drug in the United Kingdom as a result of the N-benzylphenethylamine catch-all clause in the Misuse of Drugs Act 1971.^[8]

Analogues and derivatives

Analogues and derivatives of 2C-B:

25-N:

25-NB:

25-NM:

Substituted benzofurans:

2C-B-FLY
- 2C-B-BUTTERFLY
- 2C-B-DRAGONFLY
2CBFly-NBOMe (NBOMe-2CB-Fly)
DOB-FLY
DOB-2-DRAGONFLY-5-BUTTERFLY

N-(2C)-fentanyl:

N-(2C-B) fentanyl^[9]
- N-(2C-B-FLY) fentanyl^[10]

Other:

BOB
BOH-2C-B, β-Hydroxy-2C-B, βOH-2CB^[11]^[12]
BMB
2C-B-5-hemifly
2C-B-aminorex (2C-B-AR)
2C-B-AN
2C-B-BZP
2C-B-FLY-NB2EtO5Cl
2C-B-PP
2CB-Ind
βk-2C-B (beta-keto 2C-B)
N-Ethyl-2C-B
TCB-2 (2C-BCB)

References

^ Heim, Ralf (19 March 2004). "Synthese und Pharmakologie potenter 5-HT_2A-Rezeptoragonisten mit N-2-Methoxybenzyl-Partialstruktur". Freie Universität Berlin. Retrieved 27 June 2015.
^ Hansen, M.; Phonekeo, K.; Paine, J. S.; Leth-Petersen, S.; Begtrup, M.; Bräuner-Osborne, H.; Kristensen, J. L. (2014). "Synthesis and Structure-Activity Relationships of N-Benzyl Phenethylamines as 5-HT_2A/2C Agonists". ACS Chemical Neuroscience. 5 (3): 243–9. doi:10.1021/cn400216u. PMC 3963123. PMID 24397362.
^ Martin Hansen (2011). "Design and Synthesis of Selective Serotonin Receptor Agonists for Positron Emission Tomography Imaging of the Brain" (PDF). University of Copenhagen. Archived from the original (PDF) on 4 July 2015. Retrieved 27 June 2015.
^ Ettrup, A.; Hansen, M.; Santini, M. A.; Paine, J.; Gillings, N.; Palner, M.; Lehel, S.; Herth, M. M.; Madsen, J. (2010). "Radiosynthesis and in vivo evaluation of a series of substituted ¹¹C-phenethylamines as 5-HT_2A agonist PET tracers". European Journal of Nuclear Medicine and Molecular Imaging. 38 (4): 681–693. doi:10.1007/s00259-010-1686-8. PMID 21174090.
^ Silva, M. E.; Heim, R.; Strasser, A.; Elz, S.; Dove, S. (2011). "Theoretical studies on the interaction of partial agonists with the 5-HT_2A receptor". Journal of Computer-aided Molecular Design. 25 (1): 51–66. CiteSeerX 10.1.1.688.2670. doi:10.1007/s10822-010-9400-2. PMID 21088982.
^ Braden, M. R.; Parrish, J. C.; Naylor, J. C.; Nichols, D. E. (2006). "Molecular interaction of serotonin 5-HT2A receptor residues Phe₃₃₉^6.51 and Phe₃₄₀^6.52 with superpotent N-benzyl phenethylamine agonists". Molecular Pharmacology. 70 (6): 1956–1964. doi:10.1124/mol.106.028720. PMID 17000863.
^ https://lakemedelsverket.se/upload/lvfs/HSLF-FS/HSLFS-FS_2015_35.pdf
^ "The Misuse of Drugs Act 1971 (Ketamine etc.) (Amendment) Order 2014". UK Statutory Instruments 2014 No. 1106. www.legislation.gov.uk.
^ "Explore N-(2C-B)-Fentanyl | PiHKAL · info". isomerdesign.com.
^ "Explore N-(2C-FLY)-Fentanyl | PiHKAL · info". isomerdesign.com.
^ Glennon, Richard A.; Bondarev, Mikhail L.; Khorana, Nantaka; Young, Richard; May, Jesse A.; Hellberg, Mark R.; McLaughlin, Marsha A.; Sharif, Najam A. (November 2004). "β-Oxygenated Analogues of the 5-HT2ASerotonin Receptor Agonist 1-(4-Bromo-2,5-dimethoxyphenyl)-2-aminopropane". Journal of Medicinal Chemistry. 47 (24): 6034–6041. doi:10.1021/jm040082s. ISSN 0022-2623. PMID 15537358.
^ Beta-hydroxyphenylalkylamines and their use for treating glaucoma

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[1] Heim, Ralf (19 March 2004). "Synthese und Pharmakologie potenter 5-HT_2A-Rezeptoragonisten mit N-2-Methoxybenzyl-Partialstruktur". Freie Universität Berlin. Retrieved 27 June 2015.

[2] Hansen, M.; Phonekeo, K.; Paine, J. S.; Leth-Petersen, S.; Begtrup, M.; Bräuner-Osborne, H.; Kristensen, J. L. (2014). "Synthesis and Structure-Activity Relationships of N-Benzyl Phenethylamines as 5-HT_2A/2C Agonists". ACS Chemical Neuroscience. 5 (3): 243–9. doi:10.1021/cn400216u. PMC 3963123. PMID 24397362.

[3] Martin Hansen (2011). "Design and Synthesis of Selective Serotonin Receptor Agonists for Positron Emission Tomography Imaging of the Brain" (PDF). University of Copenhagen. Archived from the original (PDF) on 4 July 2015. Retrieved 27 June 2015.

[4] Ettrup, A.; Hansen, M.; Santini, M. A.; Paine, J.; Gillings, N.; Palner, M.; Lehel, S.; Herth, M. M.; Madsen, J. (2010). "Radiosynthesis and in vivo evaluation of a series of substituted ¹¹C-phenethylamines as 5-HT_2A agonist PET tracers". European Journal of Nuclear Medicine and Molecular Imaging. 38 (4): 681–693. doi:10.1007/s00259-010-1686-8. PMID 21174090.

[pmid21088982-5] Silva, M. E.; Heim, R.; Strasser, A.; Elz, S.; Dove, S. (2011). "Theoretical studies on the interaction of partial agonists with the 5-HT_2A receptor". Journal of Computer-aided Molecular Design. 25 (1): 51–66. CiteSeerX 10.1.1.688.2670. doi:10.1007/s10822-010-9400-2. PMID 21088982.

[6] Braden, M. R.; Parrish, J. C.; Naylor, J. C.; Nichols, D. E. (2006). "Molecular interaction of serotonin 5-HT2A receptor residues Phe₃₃₉^6.51 and Phe₃₄₀^6.52 with superpotent N-benzyl phenethylamine agonists". Molecular Pharmacology. 70 (6): 1956–1964. doi:10.1124/mol.106.028720. PMID 17000863.

[7] ttps://lakemedelsverket.se/upload/lvfs/HSLF-FS/HSLFS-FS_2015_35.pdf

[8] "The Misuse of Drugs Act 1971 (Ketamine etc.) (Amendment) Order 2014". UK Statutory Instruments 2014 No. 1106. www.legislation.gov.uk.

[9] "Explore N-(2C-B)-Fentanyl | PiHKAL · info". isomerdesign.com.

[10] "Explore N-(2C-FLY)-Fentanyl | PiHKAL · info". isomerdesign.com.

[11] Glennon, Richard A.; Bondarev, Mikhail L.; Khorana, Nantaka; Young, Richard; May, Jesse A.; Hellberg, Mark R.; McLaughlin, Marsha A.; Sharif, Najam A. (November 2004). "β-Oxygenated Analogues of the 5-HT2ASerotonin Receptor Agonist 1-(4-Bromo-2,5-dimethoxyphenyl)-2-aminopropane". Journal of Medicinal Chemistry. 47 (24): 6034–6041. doi:10.1021/jm040082s. ISSN 0022-2623. PMID 15537358.

[12] Beta-hydroxyphenylalkylamines and their use for treating glaucoma

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v t e Phenethylamines
Phenethylamines	Psychedelics: 25B-NBOMe 25C-NBOMe 25D-NBOMe 25I-NBOMe 25N-NBOMe 2C-B 2C-B-AN 2C-Bn 2C-Bu 2C-C 2C-CN 2C-CP 2C-D 2C-E 2C-EF 2C-F 2C-G 2C-G-1 2C-G-2 2C-G-3 2C-G-4 2C-G-5 2C-G-6 2C-G-N 2C-H 2C-I 2C-iP 2C-N 2C-NH2 2C-O 2C-O-4 2C-P 2C-Ph 2C-SE 2C-T 2C-T-2 2C-T-3 2C-T-4 2C-T-5 2C-T-6 2C-T-7 2C-T-8 2C-T-9 2C-T-10 2C-T-11 2C-T-12 2C-T-13 2C-T-14 2C-T-15 2C-T-16 2C-T-17 2C-T-18 2C-T-19 2C-T-20 2C-T-21 2C-T-22 2C-T-22.5 2C-T-23 2C-T-24 2C-T-25 2C-T-27 2C-T-28 2C-T-30 2C-T-31 2C-T-32 2C-T-33 2C-TFE 2C-TFM 2C-YN 2C-V Allylescaline DESOXY Escaline Isoproscaline Jimscaline Macromerine MEPEA Mescaline Metaescaline Methallylescaline Proscaline Psi-2C-T-4 TCB-2 Stimulants: Phenylethanolamine Hordenine Phenethylamine Phenpromethamine α-Methylphenethylamine (amphetamine) β-Methylphenethylamine m-Methylphenethylamine N-Methylphenethylamine o-Methylphenethylamine p-Methylphenethylamine Methylphenidate Entactogens: Lophophine MDPEA MDMPEA Others: BOH DMPEA
Amphetamines	Psychedelics: 3C-AL 3C-BZ 3C-E 3C-MAL 3C-P Aleph Beatrice Bromo-DragonFLY D-Deprenyl DMA DMCPA DMMDA DOB DOC DOEF DOET DOI DOM DON DOPR DOTFM Ganesha MMDA MMDA-2 Psi-DOM TMA TeMA ZDCM-04 Stimulants: 2-FA 2-FMA 3-FA 3-FMA Acridorex Alfetamine Amfecloral Amfepentorex Amphetamine (Dextroamphetamine, Levoamphetamine) Amphetaminil Benfluorex Benzphetamine Cathine Clobenzorex Dimethylamphetamine Ephedrine Etilamfetamine Fencamfamin Fencamine Fenethylline Fenfluramine (Dexfenfluramine, Levofenfluramine) Fenproporex Flucetorex Fludorex Formetorex Furfenorex Gepefrine 4-Hydroxyamphetamine Iofetamine Isopropylamphetamine Lefetamine Lisdexamfetamine Mefenorex Metaraminol Methamphetamine (Dextromethamphetamine, Levomethamphetamine) Methoxyphenamine MMA Morforex Norfenfluramine L-Norpseudoephedrine N,alpha-Diethylphenylethylamine Oxifentorex Oxilofrine Ortetamine PBA PCA PFA PFMA PIA PMA PMEA PMMA Phenylpropanolamine Pholedrine Prenylamine Propylamphetamine Pseudoephedrine Sibutramine Tiflorex Tranylcypromine Xylopropamine Zylofuramine Entactogens: 4-FA 4-FMA 4-MA 4-MMA 4-MTA 5-APB 5-APDB 5-EAPB 5-IT 5-MAPB 5-MAPDB 6-APB 6-APDB 6-Chloro-MDMA 6-EAPB 6-IT 6-MAPB 6-MAPDB EDA IAP 2,3-MDA 3,4-MDA (tenamfetamine) MDEA MDHMA MDMA (midomafetamine) MDOH Methamnetamine MMDMA Naphthylaminopropane TAP Others: 3,4-DCA Amiflamine DiFMDA Selegiline (also D-Deprenyl)
Phentermines	Stimulants: Chlorphentermine Cloforex Clortermine Etolorex Mephentermine Pentorex Phentermine Entactogens: MDPH MDMPH Others: Cericlamine
Cathinones	Stimulants: 3-FMC 4-MC 4-BMC 4-CMC 4-EMC 4-FMC 4-MEC 4-MeMABP 4-MPD Amfepramone Benzedrone Brephedrone Buphedrone Bupropion Cathinone Dimethylcathinone Ethcathinone Eutylone Hydroxybupropion Methcathinone Methedrone NEB N-Ethylhexedrone N-Ethylpentedrone Pentedrone Pentylone Radafaxine Entactogens: 3,4-DMMC 3-MMC Butylone Ethylone Methylone Methylenedioxycathinone Mephedrone
Phenylisobutylamines	Entactogens: 4-CAB 4-MAB Ariadne BDB Butylone EBDB Eutylone MBDB Stimulants: Phenylisobutylamine
Phenylalkylpyrrolidines	Stimulants: α-PBP α-PHP α-PPP α-PVP MDPBP MDPPP MDPV 4-MePBP 4-MePHP 4-MePPP MOPPP MOPVP MPBP MPHP MPPP Naphyrone PEP Prolintane Pyrovalerone
Catecholamines (and close relatives)	6-FNE 6-OHDA a-Me-DA a-Me-TRA Adrenochrome Ciladopa D-DOPA (Dextrodopa) Dimetofrine Dopamine Epinephrine Epinine Etilefrine Ethylnorepinephrine Fenclonine Ibopamine Isoprenaline Isoetarine L-DOPA (Levodopa) L-DOPS (Droxidopa) L-Phenylalanine L-Tyrosine m-Tyramine Metanephrine Metaraminol Metaterol Metirosine Methyldopa N,N-Dimethyldopamine Nordefrin (Levonordefrin) Norepinephrine Norfenefrine (m-Octopamine) Normetanephrine Orciprenaline p-Octopamine p-Tyramine Phenylephrine Synephrine
Miscellaneous	AL-LAD Amidephrine Arbutamine Cafedrine Denopamine Desvenlafaxine Diphenidine Dizocilpine Dobutamine Dopexamine Ephenidine Etafedrine ETH-LAD Famprofazone Fluorolintane Hexapradol IP-LAD Lysergic acid amide Lysergic acid 2-butyl amide Lysergic acid 2,4-dimethylazetidide Lysergic acid diethylamide Methoxamine Methoxphenidine MT-45 PARGY-LAD Phenibut PRO-LAD Pronethalol Salbutamol (Levosalbutamol) Solriamfetol Theodrenaline Thiamphenicol UWA-101 Venlafaxine