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Geraldine Dowling

12 papers in the library · 250 citations · publishing 2014-2022

Papers

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(2-Aminopropyl)benzo[β]thiophenes (APBTs) are novel monoamine transporter ligands that lack stimulant effects but display psychedelic-like activity in mice.

Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology March 1, 2022 Deborah Rudin, John D. Mccorvy, Grant C. Glatfelter et al. 18 citations

Derivatives of (2-aminopropyl)indole (API) and (2-aminopropyl)benzofuran (APB) are new psychoactive substances which produce stimulant effects in vivo. (2-Aminopropyl)benzo[β]thiophene (APBT) is a novel sulfur-based analog of API and APB that has not been pharmacologically characterized. In the current study, we assessed the pharmacological effects of six APBT positional isomers in vitro, and...

Return of the lysergamides. Part VII: Analytical and behavioural characterization of 1‐valeroyl‐d‐lysergic acid diethylamide (1V‐LSD)

Drug Testing and Analysis November 27, 2021 Simon D. Brandt, Pierce V. Kavanagh, Folker Westphal et al. 19 citations

Abstract The psychopharmacological properties of the psychedelic drug lysergic acid diethylamide (LSD) have attracted the interest of several generations of scientists. While further explorations involving novel LSD‐type compounds are needed to assess their potential as medicinal drugs, the emergence of novel derivatives as recreational drugs has also been observed. 1‐Valeroyl‐LSD (also known...

Separating the wheat from the chaff: Observations on the analysis of lysergamides LSD, MIPLA, and LAMPA

Drug Testing and Analysis May 22, 2021 Simon D. Brandt, Pierce V. Kavanagh, Folker Westphal et al. 12 citations

Abstract Lysergic acid diethylamide (LSD) is a potent psychoactive substance that has attracted great interest in clinical research. As the pharmacological exploration of LSD analogs continues to grow, some of those analogs have appeared on the street market. Given that LSD analogs are uncontrolled in many jurisdictions, it is important that these analogs be differentiated from LSD. This report...

Analytical profile of N‐ethyl‐N‐cyclopropyl lysergamide (ECPLA), an isomer of lysergic acid 2,4‐dimethylazetidide (LSZ)

Drug Testing and Analysis August 24, 2020 Simon D. Brandt, Pierce V. Kavanagh, Folker Westphal et al. 5 citations

Recent investigations have shown that N-ethyl-N-cyclopropyl lysergamide (ECPLA) produces LSD-like behavioral effects in mice, which suggests that it may act as a hallucinogen in humans. Although the use of ECPLA as a recreational drug has been limited, key analytical data that can be used to detect ECPLA are required for future forensic and clinical investigations. ECPLA is an isomer of...

Return of the lysergamides. Part VI: Analytical and behavioural characterization of 1‐cyclopropanoyl‐d‐lysergic acid diethylamide (1CP‐LSD)

Drug Testing and Analysis March 16, 2020 Simon D. Brandt, Pierce V. Kavanagh, Folker Westphal et al. 38 citations

Abstract Lysergic acid diethylamide (LSD) is a prototypical serotonergic psychedelic drug and the subject of many clinical investigations. In recent years, a range of lysergamides has emerged with the production of some being inspired by the existing scientific literature. Others, for example various 1‐acyl substituted lysergamides, did not exist before their appearance as research chemicals....

Return of the lysergamides. Part V: Analytical and behavioural characterization of 1‐butanoyl‐d‐lysergic acid diethylamide (1B‐LSD)

Drug Testing and Analysis May 13, 2019 Simon D. Brandt, Pierce V. Kavanagh, Folker Westphal et al. 72 citations

Abstract The psychedelic properties of lysergic acid diethylamide (LSD) have captured the imagination of researchers for many years and its rediscovery as an important research tool is evidenced by its clinical use within neuroscientific and therapeutic settings. At the same time, a number of novel LSD analogs have recently emerged as recreational drugs, which makes it necessary to study their...

Syntheses and analytical characterizations of the research chemical 1‐[1‐(2‐fluorophenyl)‐2‐phenylethyl]pyrrolidine (fluorolintane) and five of its isomers

Drug Testing and Analysis April 30, 2019 Michael Dybek, Jason Wallach, Pierce V. Kavanagh et al. 9 citations

Abstract A number of substances based on the 1,2‐diarylethylamine template have been investigated for various potential clinical applications whereas others have been encountered as research chemicals sold for non‐medical use. Some of these substances have transpired to function as NMDA receptor antagonists that elicit dissociative effects in people who use these substances recreationally....

Synthesis, analytical characterization, and monoamine transporter activity of the new psychoactive substance 4‐methylphenmetrazine (4‐MPM), with differentiation from its ortho‐ and meta‐ positional isomers

Drug Testing and Analysis April 19, 2018 Gavin McLaughlin, Michael H. Baumann, Pierce V. Kavanagh et al. 8 citations

The availability of new psychoactive substances (NPS) on the recreational drug market continues to create challenges for scientists in the forensic, clinical and toxicology fields. Phenmetrazine (3-methyl-2-phenylmorpholine) and an array of its analogs form a class of psychostimulants that are well documented in the patent and scientific literature. The present study reports on two...

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...

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...