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Chemical class of organic compounds From Wikipedia, the free encyclopedia
Substituted phenethylamines (or simply phenethylamines) are a chemical class of organic compounds that are based upon the phenethylamine structure;[note 1] the class is composed of all the derivative compounds of phenethylamine which can be formed by replacing, or substituting, one or more hydrogen atoms in the phenethylamine core structure with substituents.
This article needs additional citations for verification. (August 2014) |
Substituted phenethylamine | |
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Drug class | |
![]() The structural formula of phenethylamine with marked substitution points. Phenethylamine is obtained when R2=R3=R4=R5=R6=RN=Rα=Rβ=H. | |
Class identifiers | |
Chemical class | Substituted derivatives of phenethylamine |
Legal status | |
In Wikidata |
The structural formula of any substituted phenethylamine contains a phenyl ring that is joined to an amino (NH) group via a two-carbon sidechain. Hence, any substituted phenethylamine can be classified according to the substitution of hydrogen (H) atoms on phenethylamine's phenyl ring, sidechain, or amino group with a specific group of atoms.
Many substituted phenethylamines are psychoactive drugs which belong to a variety of different drug classes, including central nervous system stimulants (e.g., amphetamine), hallucinogens (e.g., 3,4,5-trimethoxyphenethylamine a.k.a. mescaline), 2,5-dimethoxy-4-methylamphetamine a.k.a. DOM), entactogen (e.g. MDA), appetite suppressants (e.g. phentermine), nasal decongestants and bronchodilators (e.g., levomethamphetamine and pseudoephedrine), antidepressants (e.g. bupropion and phenelzine), antiparkinson agents (e.g., selegiline), and vasopressors (e.g., ephedrine), among others.[1][2] Many of these psychoactive compounds exert their pharmacological effects primarily by modulating monoamine neurotransmitter systems; however, there is no mechanism of action or biological target that is common to all members of this subclass.[medical citation needed]
Numerous endogenous compounds – including hormones, catecholamines such as dopamine and noradrenaline, and many trace amines (e.g. adrenaline, phenethylamine itself, tyramine, thyronamine, and iodothyronamine) – are substituted phenethylamines. Several notable recreational drugs, such as MDMA (ecstasy), methamphetamine, and cathinone, are also members of the class. All of the substituted amphetamines and substituted methylenedioxyphenethylamines are substituted phenethylamines as well.
Chemical
Structure |
Short Name | RN | Rα | Rβ | R2 | R3 | R4 | R5 | Full Name | Biologic activity |
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meta-Tyramine | OH | 3-hydroxyphenethylamine | Trace amine | ||||||
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para-Tyramine | OH | 4-hydroxyphenethylamine | Trace amine | ||||||
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Dopamine | OH | OH | 3,4-dihydroxyphenethylamine | Catecholamine neurotransmitter | |||||
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Epinephrine (Adrenaline) | CH3 | OH | OH | OH | β,3,4-trihydroxy-N-methylphenethylamine | Catecholamine neurotransmitter/Fight or Flight hormone | |||
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Norepinephrine (Noradrenaline) | OH | OH | OH | β,3,4-trihydroxyphenethylamine | Catecholamine neurotransmitter/Fight or Flight hormone | ||||
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Norfenefrine | OH | OH | β,3-dihydroxyphenethylamine | Trace amine | |||||
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para-Octopamine | OH | OH | β,4-dihydroxyphenethylamine | Trace aminergic α-adrenoceptor agonist | |||||
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Oxidopamine | OH | OH | OH | 2,4,5-trihydroxyphenethylamine | neurotoxic agent for the dopamine and norepinephrine receptors | ||||
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Phenylephrine | CH3 | OH | OH | β,3-dihydroxy-N-methylphenethylamine | α-adrenergic agonist; decongestant | ||||
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Isoprenaline | CH(CH3)2 | OH | OH | OH | β,3-dihydroxy-N-isopropylphenethylamine | β-adrenergic agonist; decongestant | |||
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Salbutamol | C(CH3)3 | OH | CH2OH | OH | β,4-dihydroxy-3-hydroxymethyl-N-tert-butylphenethylamine | Short-action β2-adrenergic agonist | |||
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β-Methylphenethylamine | CH3 | β-methylphenethylamine | Stimulant | ||||||
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Amphetamine | CH3 | α-methylphenethylamine | Monoamine releasing agent; Stimulant | ||||||
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N-Methylphenethylamine | CH3 | N-methylphenethylamine | Trace amine; endogenous amphetamine isomer | ||||||
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N,N-Dimethylphenethylamine | (CH3)2 | N,N-dimethylphenethylamine | Trivial effects (used as a food additive and flavoring agent) | ||||||
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Methamphetamine | CH3 | CH3 | N-methylamphetamine; N,α-dimethylphenethylamine | Monoamine releasing agent; stimulant; neurotoxin | |||||
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Phentermine | (CH3)2 | α-methylamphetamine; α,α-dimethylphenethylamine | Stimulant, anorectic | ||||||
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Ortetamine | CH3 | CH3 | 2-methylamphetamine; 2,α-dimethylphenethylamine | Stimulant, anorectic | |||||
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Phenelzine | NH2 | β-phenylethylhydrazine | Monoamine oxidase inhibitor | ||||||
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Tranylcypromine | -CH2- | 2-phenylcyclopropylamine | Monoamine oxidase inhibitor | ||||||
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Selegiline | -CH2-C≡CH | CH3 | N,α-dimethyl-N-2-propynylphenethylamine | MAO-B selective monoamine oxidase inhibitor | |||||
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Methylphenidate | -CH2-CH2-CH2-CH2- | C(OCH3)=O | N,α-butylene-β-methoxycarbonylphenethylamine | NDRI; Stimulant | |||||
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Ephedrine / Pseudoephedrine | CH3 | CH3 | OH | N-methyl-β-hydroxyamphetamine | Releasing agent; stimulant; decongestant | ||||
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Cathine | CH3 | OH | d-β-hydroxyamphetamine | Moderately selective norepinephrine releasing agent | |||||
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Cathinone | CH3 | =O | β-ketoamphetamine | Selective norepinephrine and dopamine releasing agent | |||||
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Methcathinone | CH3 | CH3 | =O | N-methylcathinone | Selective norepinephrine and dopamine releasing agent | ||||
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Mephedrone | CH3 | CH3 | =O | CH3 | 4-methylmethcathinone | Stimulant, unknown pharmacodynamic actions | |||
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Ethcathinone | CH2CH3 | CH3 | =O | N-ethylcathinone | Stimulant and norepinephrine releasing agent | ||||
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Amfepramone (diethylpropion) | C2H5, C2H5[note 2] | CH3 | =O | N-diethyl-β-ketoamphetamine | Anorectic | ||||
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Bupropion | C(CH3)3 | CH3 | =O | Cl | 5-chloro-N-tert-butyl-β-ketoamphetamine | NDRI | |||
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Norfenfluramine | CH3 | CF3 | 3-trifluoromethyl-amphetamine | SSRA | |||||
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Fenfluramine | CH2CH3 | CH3 | CF3 | 3-trifluoromethyl-N-ethylamphetamine | SSRA | ||||
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5-APB | CH3 | -CH=CH-O- | 5-(2-aminopropyl)benzofuran | Stimulant, entactogen | |||||
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6-APB | CH3 | -O-CH=CH- | 6-(2-aminopropyl)benzofuran | Stimulant, entactogen | |||||
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MDA | CH3 | -O-CH2-O- | 3,4-methylenedioxy-amphetamine | Stimulant, psychedelic, entactogen | |||||
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MDEA | CH2CH3 | CH3 | -O-CH2-O- | 3,4-methylenedioxy-N-ethylamphetamine | Psychedelic, entactogen, and releasing agent | ||||
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MDMA | CH3 | CH3 | -O-CH2-O- | 3,4-methylenedioxy-N-methylamphetamine | Psychedelic, entactogen, and releasing agent | ||||
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MDMC | CH3 | CH3 | =O | -O-CH2-O- | 3,4-methylenedioxymethcathinone | Psychedelic, entactogen, and releasing agent | |||
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MMDA | CH3 | -O-CH2-O- | OCH3 | 5-methoxy-3,4-methylenedioxy-amphetamine | Stimulant, psychedelic and entactogen | ||||
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MMDMA | CH3 | CH3 | -O-CH2-O- | OCH3 | 5-methoxy-3,4-methylenedioxy-N-methylamphetamine | Psychedelic, entactogen, and releasing agent | |||
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Lophophine | -O-CH2-O- | OCH3 | 5-methoxy-3,4-methylenedioxyphenethylamine | Psychedelic and entactogen | |||||
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Mescaline | OCH3 | OCH3 | OCH3 | 3,4,5-trimethoxyphenethylamine | Psychedelic and entactogen | ||||
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Proscaline | OCH3 | OCH2CH2CH3 | OCH3 | 2-(3,5-dimethoxy-4-propoxyphenyl)ethanamine | Psychedelic and entactogen | ||||
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Metaescaline | OCH2CH3 | OCH3 | OCH3 | 2-(3-ethoxy-4,5-dimethoxyphenyl)ethanamine | Psychedelic and entactogen | ||||
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Allylescaline | OCH3 | OCH2CH1CH2 | OCH3 | 4-Allyloxy-3,5-dimethyloxyphenylethylamine | Psychedelic and entactogen | ||||
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Methallylescaline | OCH3 | OCH2C(CH2CH3) | OCH3 | 4-Methallyloxy-3,5-dimethoxyphenethylamine | Psychedelic and entactogen | ||||
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Asymbescaline | OCH2CH3 | OCH2CH3 | OCH3 | 3,4-Diethoxy-5-methoxyphenethylamine | Psychedelic and euphoriant | ||||
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DOM | CH3 | OCH3 | CH3 | OCH3 | 2,5-dimethoxy-4-methylamphetamine | Psychedelic | |||
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DOB | CH3 | OCH3 | Br | OCH3 | 2,5-dimethoxy-4-bromoamphetamine | Psychedelic | |||
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DOC | CH3 | OCH3 | Cl | OCH3 | 2,5-dimethoxy-4-chloroamphetamine | Psychedelic | |||
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DOI | CH3 | OCH3 | I | OCH3 | 2,5-dimethoxy-4-iodoamphetamine | Psychedelic | |||
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DON | CH3 | OCH3 | NO2 | OCH3 | 2,5-dimethoxy-4-nitroamphetamine | Stimulant | |||
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2C-B | OCH3 | Br | OCH3 | 2,5-dimethoxy-4-bromophenethylamine | Psychedelic, stimulant, entactogen and euphoriant | ||||
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βk-2C-B | =O | OCH3 | Br | OCH3 | 2,5-dimethoxy-4-bromo-β-ketophenethylamine | Psychedelic, stimulant, entactogen and euphoriant | |||
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2C-C | OCH3 | Cl | OCH3 | 2,5-dimethoxy-4-chlorophenethylamine | Psychedelic | ||||
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2C-F | OCH3 | F | OCH3 | 2,5-dimethoxy-4-fluorophenethylamine | Psychedelic | ||||
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2C-I | OCH3 | I | OCH3 | 2,5-dimethoxy-4-iodophenethylamine | Psychedelic, stimulant | ||||
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2C-D | OCH3 | CH3 | OCH3 | 2,5-dimethoxy-4-methylphenethylamine | Psychedelic, stimulant | ||||
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2C-E | OCH3 | CH2-CH3 | OCH3 | 2,5-dimethoxy-4-ethylphenethylamine | Psychedelic | ||||
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2C-P | OCH3 | CH2-CH3-CH3 | OCH3 | 2,5-dimethoxy-4-propylphenethylamine | Entactogen, euphoriant and Psychedelic | ||||
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2C-N | OCH3 | NO2 | OCH3 | 2,5-dimethoxy-4-nitrophenethylamine | euphoriant | ||||
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2C-T-2 | OCH3 | S-CH2CH3 | OCH3 | 2,5-dimethoxy-4-ethylthio-phenethylamine | Psychedelic | ||||
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2C-T-4 | OCH3 | S-CH(CH3)2 | OCH3 | 2,5-dimethoxy-4-isopropylthio-phenethylamine | Psychedelic | ||||
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2C-T-7 | OCH3 | S-CH2CH2CH3 | OCH3 | 2,5-dimethoxy-4-propylthio-phenethylamine | Psychedelic | ||||
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2C-T-8 | OCH3 | S-CH2-C3H5 | OCH3 | 2,5-dimethoxy-4-cyclopropylmethylthio-phenethylamine | Psychedelic | ||||
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2C-T-19 | OCH3 | S-C(CH3)3 | OCH3 | 2,5-dimethoxy-4-tert-butylthio-phenethylamine | Psychedelic | ||||
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2C-T-21 | OCH3 | S-CH2-CH2-F | OCH3 | 2,5-dimethoxy-4-(2-fluoroethylthio)-phenethylamine | Psychedelic and euphoriant | ||||
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25B-NBOMe[3] | CH2-C6H4-OCH3 | OCH3 | Br | OCH3 | 2-(4-bromo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine | Psychedelic | |||
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25C-NBOMe | CH2-C6H4-OCH3 | OCH3 | Cl | OCH3 | 2-(4-chloro-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine | Psychedelic | |||
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25F-NBOMe | CH2-C6H4-OCH3 | OCH3 | F | OCH3 | 2-(4-fluoro-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine | Psychedelic | |||
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25I-NBOMe | CH2-C6H4-OCH3 | OCH3 | I | OCH3 | 2-(4-iodo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine | Psychedelic | |||
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25D-NBOMe | CH2-C6H4-OCH3 | OCH3 | CH2 | OCH3 | 2-(4-methyl-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine | Psychedelic | |||
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25E-NBOMe | CH2-C6H4-OCH3 | OCH3 | CH2-CH3 | OCH3 | 2-(4-ethyl-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine | Psychedelic | |||
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25P-NBOMe | CH2-C6H4-OCH3 | OCH3 | CH2-CH3-CH3 | OCH3 | 2-(4-propyl-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine | Psychedelic | |||
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Mescaline-NBOMe | CH2-C6H4-OCH3 | OCH3 | OCH3 | OCH3 | N-(2-Methoxybenzyl)-2-(3,4,5-trimethoxyphenyl)ethanamine | Psychedelic | |||
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25B-NBOH | CH2–C6H4–OH | OCH3 | Br | OCH3 | N-(2-hydroxybenzyl)-2,5-dimethoxy-4-bromo-phenethylamine | Psychedelic | |||
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25C-NBOH | CH2–C6H4–OH | OCH3 | Cl | OCH3 | N-(2-hydroxybenzyl)-2,5-dimethoxy-4-chloro-phenethylamine | Psychedelic | |||
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25I-NBOH | CH2–C6H4–OH | OCH3 | I | OCH3 | N-(2-hydroxybenzyl)-2,5-dimethoxy-4-iodo-phenethylamine | Psychedelic | |||
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25I-NBF | CH2–C6H4–F | OCH3 | I | OCH3 | N-(2-fluorobenzyl)-2,5-dimethoxy-4-iodo-phenethylamine | Psychedelic | |||
Short Name | RN | Rα | Rβ | R2 | R3 | R4 | R5 | Full Name | Biologic activity |
![]() | This section needs expansion. You can help by adding to it. (December 2015) |
method | Requirement |
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UV spectrometry | Reagent needed |
Detection of substituted phenethylamines, which include compounds such as 2C-B, MDMA, and other designer drugs, involves various analytical methods aimed at identifying these psychoactive substances. These compounds are structurally similar to amphetamines, making their detection challenging due to potential cross-reactivity in standard drug tests. Techniques like gas chromatography-mass spectrometry (GC-MS), liquid chromatography-mass spectrometry (LC-MS), and immunoassay screenings are commonly employed for accurate identification. Advanced methods like high-performance liquid chromatography (HPLC) allow for precise separation and quantification of these substances even at low concentrations. Given the rising use of these drugs in recreational settings, developing sensitive and specific detection techniques remains crucial in forensic toxicology and clinical diagnostics.