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Brian Talbot

9 papers in the library · 180 citations · publishing 2012-2020

Papers

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The Psilocin (4-hydroxy-N,N-dimethyltryptamine) and Bufotenine (5-hydroxy-N,N-dimethyltryptamine) Case: Ensuring the Correct Isomer has Been Identified.

Journal of Forensic Sciences September 1, 2020 Tehila Mishraki-Berkowitz, Esti Kochelski, Pierce V. Kavanagh et al. 12 citations

Psilocin (4-hydroxy-N,N-dimethyltryptamine, 4-HO-DMT) and bufotenine (5-hydroxy-N,N-dimethyltryptamine, 5-HO-DMT), which are both naturally occurring compounds, are classified as controlled substances in numerous countries due to their pharmacological activities and recreational usage. There are two other benzene ring regioisomers, 6-hydroxy-N,N-dimethyltryptamine (6-HO-DMT) and...

Identification of pyrolysis products of the new psychoactive substance 2-amino-1-(4-bromo-2,5-dimethoxyphenyl)ethanone hydrochloride (bk-2C-B) and its iodo analogue bk-2C-I.

Drug Testing and Analysis 2018 Kelly B Texter, Rachel Waymach, Pierce V. Kavanagh et al. 9 citations

2-Amino-1-(4-bromo-2,5-dimethoxyphenyl)ethanone hydrochloride (bk-2C-B) has recently emerged as a new psychoactive substance (NPS). It is most commonly consumed orally, although there are indications that it might also be ingested by inhalation or 'smoking'. Information about the stability of bk-2C-B when exposed to heat is unavailable and the potential for pyrolytic degradation and formation...

Analytical characterization of N,N-diallyltryptamine (DALT) and 16 ring-substituted derivatives.

Drug Testing and Analysis 2017 Simon D. Brandt, Pierce V. Kavanagh, Geraldine Dowling et al. 16 citations

Many N,N-dialkylated tryptamines show psychoactive properties in humans and the number of derivatives involved in multidisciplinary areas of research has grown over the last few decades. Whereas some derivatives form the basis of a range of medicinal products, others are predominantly encountered as recreational drugs, and in some cases, the areas of therapeutic and recreational use can...

Synthesis, characterization and monoamine transporter activity of the new psychoactive substance mexedrone and its N‐methoxy positional isomer, N‐methoxymephedrone

Drug Testing and Analysis August 15, 2016 Gavin McLaughlin, Noreen Morris, Pierce V. Kavanagh et al. 23 citations

3‐Methoxy‐2‐(methylamino)‐1‐(4‐methylphenyl)propan‐1‐one (mexedrone) appeared in 2015 and was advertised by UK Internet retailers as a non‐controlled mephedrone derivative (2‐(methylamino)‐1‐(4‐methylphenyl)propan‐1‐one), which was of particular interest to countries who operate generic drugs legislation. This study describes the synthesis and analytical characterization of mexedrone and the...

Test purchase, identification and synthesis of 2-amino-1-(4-bromo-2, 5-dimethoxyphenyl)ethan-1-one (bk-2C-B).

Drug Testing and Analysis June 1, 2015 John D. Power, Pierce V. Kavanagh, John O'Brien et al. 12 citations

2-Amino-1-(4-bromo-2,5-dimethoxyphenyl)ethan-1-one (bk-2C-B) has been recently offered for purchase by a variety of Internet retailers. This substance may be considered a cathinone analogue of the phenethylamine 2-(4-bromo-2,5-dimethoxyphenyl)ethan-1-amine (2C-B) which suggests that it may have psychoactive effects in humans. A test purchase of bk-2C-B was carried out and its identity was...

Test purchase, synthesis, and characterization of 2‐methoxydiphenidine (MXP) and differentiation from its meta‐ and para‐substituted isomers

Drug Testing and Analysis April 15, 2015 Gavin McLaughlin, Noreen Morris, Pierce V. Kavanagh et al. 32 citations

The structurally diverse nature of the 1,2-diphenylethylamine template provides access to a range of substances for drug discovery work but some have attracted attention as 'research chemicals'. The most recent examples include diphenidine, i.e. 1-(1,2-diphenylethyl)piperidine and 2-methoxydiphenidine, i.e. 1-[1-(2-methoxyphenyl)-2-phenylethyl]piperidine (MXP, methoxyphenidine, 2-MXP) that have...

Synthesis, characterization, and monoamine transporter activity of the new psychoactive substance 3′,4′‐methylenedioxy‐4‐methylaminorex (MDMAR)

Drug Testing and Analysis October 20, 2014 Gavin McLaughlin, Noreen Morris, Pierce V. Kavanagh et al. 18 citations

The recent occurrence of deaths associated with the psychostimulant cis-4,4'-dimethylaminorex (4,4'-DMAR) in Europe indicated the presence of a newly emerged psychoactive substance on the market. Subsequently, the existence of 3,4-methylenedioxy-4-methylaminorex (MDMAR) has come to the authors' attention and this study describes the synthesis of cis- and trans-MDMAR followed by extensive...

Characterization of a novel and potentially lethal designer drug (±)‐cis‐para‐methyl‐4‐methylaminorex (4,4'‐DMAR, or ‘Serotoni’)

Drug Testing and Analysis May 19, 2014 Simon D. Brandt, Michael H. Baumann, John S. Partilla et al. 37 citations

During the second half of 2013, a total of 26 deaths involving para-methyl-4-methylaminorex (4,4'-DMAR) were reported to the European Monitoring Centre for Drugs and Drug Addiction. While aminorex and 4-methylaminorex (4-MAR) are known psychostimulants, nothing is known about the comparatively new para-methyl analog. Analytical characterization of two independent samples obtained from online...

The irrelevance of folk intuitions to the "hard problem" of consciousness.

Consciousness and Cognition June 1, 2012 Brian Talbot 21 citations

Recently, a number of philosophers have turned to folk intuitions about mental states for data about qualia and phenomenal consciousness. In this paper I argue that current research along these lines does not tell us about these subjects. I focus on a series of studies, performed by Justin Sytsma and Edouard Machery, to make my argument. Folk judgments studied by these researchers are mostly...