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2,5-Dimethoxy-4-amylamphetamine
Pharmaceutical compound From Wikipedia, the free encyclopedia
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2,5-Dimethoxy-4-amylamphetamine (DOAM), also known as 2,5-dimethoxy-4-pentylamphetamine, is a psychedelic drug of the phenethylamine, amphetamine, and DOx families related to DOM.[1][2] It is the derivative of DOM in which the methyl group at the 4 position has been replaced with an amyl (pentyl) group.[1][2] The drug is taken orally.[1]
It is a serotonin receptor agonist, including of the serotonin 5-HT2A receptor.[2] The drug produces weak and mixed psychedelic-like effects in animals.[2][3][4][5]
DOAM was first described in the scientific literature by Alexander Shulgin and colleagues in 1975.[6] Subsequently, it was described in greater detail by Shulgin in his 1991 book PiHKAL (Phenethylamines I Have Known and Loved).[1]
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Use and effects
In his book PiHKAL (Phenethylamines I Have Known and Loved), Alexander Shulgin lists the dose of DOAM as >10 mg orally and its duration as unknown.[1] DOAM was reported to produce a bare threshold and tenseness.[1] In other publications however, DOAM has been said to produce threshold effects at 5 to 10 mg orally and to be hallucinogenic at a dose of 40 mg, with about 10-fold higher potency than mescaline.[7][8][6] In any case, it shows far lower psychedelic potency than other DOx drugs such as DOM.[7][8] No qualitative description of its effects at hallucinogenic doses is available.[8][1]
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Pharmacology
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Pharmacodynamics
DOAM has been found to be a moderate- to high-efficacy partial agonist of the serotonin 5-HT2A receptor.[2][9] It also shows lower affinity for the serotonin 5-HT2B and 5-HT2C receptors, whereas it has very low affinity for the serotonin 5-HT1A receptor.[2][9] The drug is a full agonist of the serotonin 5-HT2B and 5-HT2C receptors.[2] It is most potent as a serotonin 5-HT2C receptor agonist, whereas it shows far lower potency as an agonist of the serotonin 5-HT2B receptor than as an agonist of the serotonin 5-HT2A and 5-HT2C receptors.[2] DOAM shows very low potency as a human trace amine-associated receptor 1 (TAAR1) agonist.[2][9] It does not bind to the monoamine transporters.[2][9] Other receptor interactions have also been described.[2]
The drug produces the head-twitch response, a behavioral proxy of psychedelic effects, in rodents.[2] However, it produces only a weak head-twitch response and is less potent and much less efficacious than DOM in this regard.[2] In addition, DOAM fails to substitute for DOM in rodent drug discrimination tests, producing up to 35% responding followed up behavioral disruption at higher doses.[3][4][5] It was also unable to antagonize the DOM stimulus at the assessed doses, and behavioral disruption at higher doses prevented further assessment.[10] Other effects of DOAM in rodents include hyperlocomotion at lower doses, hypolocomotion at higher doses, and hypothermia at higher doses.[2]
As the 4-alkyl chain length in DOx is increased from shorter homologues such as DOM, DOET and DOPR which are all potent hallucinogens, the serotonin 5-HT2 receptor binding affinity increases, rising to a maximum with DOHx before falling again with even longer chains. Compounds with sufficiently long chains, such as DOAM, or with bulky groups such as DOTB, have reduced or absent psychedelic-type effects in animals and/or humans, suggesting that they may have reduced agonistic activity at the serotonin 5-HT2A receptor.[2][6][4][11][12]
Pharmacokinetics
DOAM crosses the blood–brain barrier in rodents.[2]
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Chemistry
Synthesis
The chemical synthesis of DOAM has been described.[1]
Analogues
Analogues of DOAM include 2,5-dimethoxyamphetamine (2,5-DMA), DOM, DOET, DOPR, DOBU, and DOHx, among others.[1][2]
History
DOAM was first described in the scientific literature by Alexander Shulgin and colleagues in 1975.[6] Subsequently, it was described in greater detail by Shulgin in his 1991 book PiHKAL (Phenethylamines I Have Known and Loved).[1]
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References
External links
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