Diarylethylamines: Difference between revisions
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[[File:Substituted diarylethylamine.svg|250px|thumbnail|General chemical structure of a diarylethylamine]] | |||
'''Diarylethylamines''' are a chemical class of [[psychoactive substances]] that produce [[dissociative]] effects when [[administered]]. [[Subjective effects]] are similar to those of [[arylcyclohexylamine]] dissociatives like [[PCP]] or [[ketamine]], although they differ in their chemical structure. | |||
''' | Diarylethylamines are examples of contemporary designer drugs specifically chosen to mimic and/or replace the functional and structural features of commonly used illicit substances. They have been marketed on the online research chemicals market as a replacement for [[MXE]] and other dissociatives. | ||
Very little is known about the human pharmacology, metabolism, and toxicity of these compounds. Many reports suggest that they may pose different and more pronounced risks than traditional dissociatives. | |||
===Pharmacology=== | |||
{| class="wikitable mw-collapsible" width="50%" | |||
|- | |||
|+NMDAR binding affinities for five target 1,2-diphenylethylamines and reference compounds<ref name="Pharma2016">{{cite journal | journal=PLOS ONE | title=Pharmacological Investigations of the Dissociative ‘Legal Highs’ Diphenidine, Methoxphenidine and Analogues | volume=11 | issue=6 | pages=e0157021 | date=17 June 2016 | url=https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0157021 | issn=1932-6203 | doi=10.1371/journal.pone.0157021}}</ref> | |||
|- | |||
!Compound | |||
!IC<sub>50</sub> ± SEM (nM) | |||
!K<sub>i</sub> ± SEM (nM) | |||
|- | |||
|[[PCP]]<ref>{{cite journal | vauthors=((Wallach, J.)) | journal=UNIVERSITY OF THE SCIENCES IN PHILADELPHIA | title=Structure activity relationship (SAR) studies of arylcycloalkylamines as N-methyl-D-aspartate receptor antagonists | pages=626 | date= 2014 | url=https://www.semanticscholar.org/paper/Structure-activity-relationship-(SAR)-studies-of-as-Wallach/cc0f16999e363db74bd501f5a041083f6b0f6b5a}}</ref> | |||
|91 ± 1.3 | |||
|57.9 ± 0.8 | |||
|- | |||
|[[Ketamine]] | |||
|508.5 ± 30.1 | |||
|323.9 ± 19.2 | |||
|- | |||
|[[Memantine]] | |||
|594.2 ± 41.3 | |||
|378.4 ± 26.3 | |||
|- | |||
|(+)-[[MK-801]] | |||
|4.1 ± 1.6 | |||
|2.5 ± 1.0 | |||
|- | |||
|[[Diphenidine]]* | |||
|28.6 ± 3.5 | |||
|18.2 ± 2.2 | |||
|- | |||
|2-MXP ([[Methoxphenidine]]) | |||
|56.5 ± 5.8 | |||
|36.0 ± 3.7 | |||
|- | |||
|3-MXP | |||
|30.3 ± 2.6 | |||
|19.3 ± 1.7 | |||
|- | |||
|4-MXP | |||
|723.8 ± 69.9 | |||
|461.0 ± 44.5 | |||
|- | |||
|2-Cl-Diphenidine* | |||
|14.6 ± 2.1 | |||
|9.3 ± 1.3 | |||
|- | |||
| colspan="3" style="text-align:center;" |<small>NMDAR binding affinites determined using [3H]-(+)-MK-801 in rat forebrain.<ref name="Pharma2016" /></small> | |||
<small>*Diphenidine is sometimes referred to as DPH in scientific studies despite this name already being in common use and widely accepted as meaning [[diphenhydramine]], an unrelated substance.</small> | |||
|} | |||
{| class="wikitable mw-collapsible" width="70%" | |||
|- | |||
|+Inhibition potencies of 1,2-diarylethylamines as monoamine transporter reuptake inhibitors.<ref name="Pharma2016" /> | |||
|- | |||
| colspan="4" style="text-align:center;" |IC<sub>50</sub> ± SEM (μM) | |||
|- | |||
!Compound | |||
!DAT | |||
!NET | |||
!SERT | |||
|- | |||
|DPH ([[Diphenidine]]) | |||
|1.99 (0.91) | |||
|9.25 (0.97) | |||
|>10 μM | |||
|- | |||
|2-MXP ([[Methoxphenidine]]) | |||
|30.0 (0.81) | |||
|35.2 (2.04) | |||
|>10 μM | |||
|- | |||
|[[3-MXP]] | |||
|0.587 (0.92) | |||
|2.71 (0.95) | |||
|>10 μM | |||
|- | |||
|[[4-MXP]] | |||
|2.23 (0.96) | |||
|22.5 (1.75) | |||
|19.0 (1.12) | |||
|- | |||
|[[2-Cl-DPH]] | |||
|10.5 (0.65) | |||
|27.1 (1.02) | |||
|>10 μM | |||
|- | |||
| colspan="4" style="text-align:left;" |IC<sub>50</sub> values shown in μM. Hill slopes shown in parenthesis. ND-IC<sub>50</sub> values were not determined because compounds showed less than 50% inhibition of uptake at 10 μM during a preliminary screening. | |||
<small>Inhibition potencies of 1,2-diarylethylamines as monoamine transporter reuptake inhibitors.<ref name="Pharma2016" /></small> | |||
|} | |||
==List of substituted diarylethylamines== | |||
{| class="wikitable" | |||
|- | |||
! scope="col" |'''Compound''' | |||
! scope="col" style="width: 50px;" |'''R<sub>N1</sub>''' | |||
! scope="col" style="width: 50px;" |'''R<sub>N2</sub>''' | |||
! scope="col" style="width: 50px;" |'''R<sub>2</sub>''' | |||
! scope="col" |'''Structure''' | |||
|- | |||
|[[Ephenidine]]||CH<sub>2</sub>CH<sub>3</sub>||H||H||[[File:Ephenidine.svg|170px]] | |||
|- | |||
|[[Diphenidine]]||CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>-||CH<sub>2</sub>CH<sub>2</sub>-||H||[[File:Diphenidine.svg|170px]] | |||
|- | |||
|[[Methoxphenidine]]||CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>-||CH<sub>2</sub>CH<sub>2</sub>-||OCH<sub>3</sub>||[[File:Methoxphenidine.svg|170px]] | |||
|- | |||
|} | |||
==See also== | |||
*[[Responsible use]] | |||
*[[Dissociative]] | |||
*[[Arylcyclohexylamine]] | |||
==Literature== | |||
*Wallach, J., Kang, H., Colestock, T., Morris, H., Bortolotto, Z. A., Collingridge, G. L., ... & Adejare, A. (2016). Pharmacological investigations of the dissociative ‘legal highs’ diphenidine, methoxphenidine and analogues. PLoS One, 11(6), e0157021. https://doi.org/10.1371/journal.pone.0157021 | |||
*Morris, H., & Wallach, J. (2014). From PCP to MXE: A comprehensive review of the non-medical use of dissociative drugs. Drug Testing and Analysis, 6(7–8), 614–632. https://doi.org/10.1002/dta.1620 | |||
*Wallach, J., & Brandt, S. D. (2018). 1, 2-Diarylethylamine-and Ketamine-Based New Psychoactive Substances. In New Psychoactive Substances (pp. 305-352). Springer, Cham. http://dx.doi.org/10.1007/164_2018_148 | |||
==References== | |||
<references /> | |||
[[Category:Chemical class]] | |||
[[Category:Diarylethylamine|*]] |