2,5-Dimethoxy-4-bromoamphetamine
Chemical structure of (±)-DOB

(R)-isomer
Names
Preferred IUPAC name
1-(4-Bromo-2,5-dimethoxyphenyl)propan-2-amine
Other names
4-Bromo-2,5-dimethoxy-amphetamine
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
DrugBank
KEGG
UNII
  • InChI=1S/C11H16BrNO2/c1-7(13)4-8-5-11(15-3)9(12)6-10(8)14-2/h5-7H,4,13H2,1-3H3 checkY
    Key: FXMWUTGUCAKGQL-UHFFFAOYSA-N checkY
  • InChI=1/C11H16BrNO2/c1-7(13)4-8-5-11(15-3)9(12)6-10(8)14-2/h5-7H,4,13H2,1-3H3
    Key: FXMWUTGUCAKGQL-UHFFFAOYAD
  • Brc1cc(OC)c(cc1OC)CC(N)C
Properties
C11H16BrNO2
Molar mass 274.15 g/mol
Melting point 63 to 65 °C (145 to 149 °F; 336 to 338 K)
(207–208 °C hydrochloride)
Pharmacology
Legal status
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

Dimethoxybromoamphetamine (DOB), also known as brolamfetamine (INN)[2] and bromo-DMA, is a psychedelic drug and substituted amphetamine of the phenethylamine class of compounds. DOB was first synthesized by Alexander Shulgin in 1967.[3][4] Its synthesis and effects are documented in Shulgin's book PiHKAL: A Chemical Love Story.

Chemistry

Tabs of DOB, confiscated by police in Concord, California in 2006.

The full name of the chemical is 2,5-dimethoxy-4-bromoamphetamine. DOB has a stereocenter and R-(–)-DOB is the eutomer. This is an important finding as it is suggestive that it is targeting different receptors relative to most other phenethylamines (e.g. MDMA) where the R-isomer serves as the distomer. The toxicity of DOB is not fully known, although high doses may cause serious vasoconstriction of the extremities. DOB is one of the most potent compounds in PiHKAL; while the active dose is similar to that of DOI, another psychedelic amphetamine, DOB has been shown to have a higher efficacy in triggering downstream effects mediated by 5-HT2 receptors,[5] making it likely to be slightly more dangerous than DOI in overdose, due to greater vasoconstrictive action. Omission of the amphetamine related α-methyl leads to 2C-B, a compound that possesses a lower affinity for the 5-HT2A receptor and is a weaker receptor agonist which results in drastically reduced vasoconstriction.

Pharmacology

DOB is a 5-HT2A, 5-HT2B, and 5-HT2C receptor agonist or partial agonist.[6] Its psychedelic effects are mediated by its agonistic properties at the 5-HT2A receptor. Due to its selectivity, DOB is often used in scientific research when studying the 5-HT2 receptor subfamily. It is an agonist of human TAAR1.[7]

It has been suggested that DOB is a prodrug metabolized in the lungs.[3][8]

Excessively high doses of this hallucinogen may cause diffuse arterial spasm.[9] The vasospasm responded readily to intra-arterial and intravenous vasodilators, such as tolazoline.

Internationally DOB is a Schedule I substance under the Convention on Psychotropic Substances and the drug is legal only for medical, industrial or scientific purposes.[10]

Canada

Listed as a Schedule 1 as it is an analogue of amphetamine.[11]

Australia

DOB is considered a Schedule 9 prohibited substance in Australia under the Poisons Standard (February 2017).[12] A Schedule 9 substance is a substance which may be abused or misused, the manufacture, possession, sale or use of which should be prohibited by law except when required for medical or scientific research, or for analytical, teaching or training purposes with approval of Commonwealth and/or State or Territory Health Authorities.[12]

Russia

Schedule I, possession of at least 10 mg is a criminal offence.[13]

United Kingdom

DOB is a Class A drug in the United Kingdom under the Misuse of Drugs Act 1971.

See also

References

  1. ↑ Anvisa (2023-07-24). "RDC Nº 804 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 804 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-07-25). Archived from the original on 2023-08-27. Retrieved 2023-08-27.
  2. ↑ World Health Organization (2000). International Nonproprietary Names (INN) for Pharmaceutical Substances. World Health Organization. ISBN 978-0-11-986227-0.
  3. 1 2 Erowid Online Books: "PiHKAL" - #62 DOB
  4. ↑ Shulgin, A.T.; Sargent, T.; Naranjo, C. (1971). "4-Bromo-2,5-Dimethoxyphenylisopropylamine, a New Centrally Active Amphetamine Analog". Pharmacology. 5 (2): 103–107. doi:10.1159/000136181. PMID 5570923. S2CID 46844380.
  5. ↑ Parrish, Jason C.; Braden, Michael R.; Gundy, Emily; Nichols, David E. (2005-12-01). "Differential phospholipase C activation by phenylalkylamine serotonin 5-HT2A receptor agonists". Journal of Neurochemistry. 95 (6): 1575–1584. doi:10.1111/j.1471-4159.2005.03477.x. ISSN 1471-4159. PMID 16277614. S2CID 24005602.
  6. ↑ Ray, T. S. (2010). "Psychedelics and the Human Receptorome". PLOS ONE. 5 (2): e9019. Bibcode:2010PLoSO...5.9019R. doi:10.1371/journal.pone.0009019. PMC 2814854. PMID 20126400.
  7. ↑ Lewin, A. H.; Miller, G. M.; Gilmour, B. (2011). "Articleid 50034244". Binding Database. 19 (23): 7044–7048. doi:10.1016/j.bmc.2011.10.007. PMC 3236098. PMID 22037049. Retrieved 29 April 2014.
  8. ↑ Shulgin (2005-05-03). "Ask Dr. Shulgin Online: DOB and Other Possible Prodrugs". Retrieved 18 November 2009.
  9. ↑ Bowen, J. Scott; Davis, Gary B.; Kearney, Thomas E. (1983-03-18). "Diffuse Vascular Spasm Associated With 4-Bromo-2,5-Dimethoxyamphetamine Ingestion". JAMA: The Journal of the American Medical Association. 249 (11): 1477–1479. doi:10.1001/jama.1983.03330350053028. ISSN 0098-7484. PMID 6827726.
  10. ↑ "List of psychotropic substances under international control" (PDF). Archived from the original (PDF) on 2 March 2007. Retrieved 30 March 2007.
  11. ↑ Archived 2021-11-23 at the Wayback Machine (in English)
  12. 1 2 Poisons Standard October 2015 https://www.comlaw.gov.au/Details/F2015L01534
  13. ↑ "Постановление Правительства РФ от 01.10.2012 N 1002 "Об утверждении значительного, крупного и особо крупного размеров наркотических средств и психотропных веществ, а также значительного, крупного и особо крупного размеров для растений, содержащих наркотические средства или психотропные вещества, либо их частей, содержащих наркотические средства или психотропные вещества, для целей статей 228, 228.1, 229 и 229.1 Уголовного кодекса Российской Федерации" (с изменениями и дополнениями) | ГАРАНТ".
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