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Stephen J. Chapman

6 papers in the library · 153 citations · publishing 2015-2023

Papers

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Analytical profile of the lysergamide 1cP-AL-LAD and detection of impurities.

Drug Testing and Analysis March 1, 2023 Pierce V. Kavanagh, Folker Westphal, Benedikt Pulver et al. 7 citations

The development of novel lysergamides continues to occur, based on both the needs of psychedelic medicine and commercial interest in new recreational substances. The present study continues the authors' research on novel lysergamides and describes the analytical profile of 1-cyclopropanoyl-AL-LAD (IUPAC name:...

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...

Investigation of the Structure–Activity Relationships of Psilocybin Analogues

ACS Pharmacology & Translational Science December 14, 2020 Adam K. Klein, Muhammad Chatha, Lauren J. Laskowski et al. 103 citations

The 5-HT2A receptor is thought to be the primary target for psilocybin (4-phosphoryloxy-N,N-dimethyltryptamine) and other serotonergic hallucinogens (psychedelic drugs). Although a large amount of experimental work has been conducted to characterize the pharmacology of psilocybin and its dephosphorylated metabolite psilocin (4-hydroxy-N,N-dimethyltryptamine), there has been little systematic...

Comparison of the behavioral effects of mescaline analogs using the head twitch response in mice

Journal of Psychopharmacology February 21, 2019 Adam L. Halberstadt, Muhammad Chatha, Stephen J. Chapman et al. 25 citations

Background: In recent years, there has been increasing scientific interest in the effects and pharmacology of serotonergic hallucinogens. While a large amount of experimental work has been conducted to characterize the behavioral response to hallucinogens in rodents, there has been little systematic investigation of mescaline and its analogs. The hallucinogenic potency of mescaline is increased...

PeakAL: Protons I Have Known and Loved - Fifty Shades of Grey-Market Spectra

August 1, 2015 Stephen J. Chapman, Arabo A. Avanes 3 citations

1H NMR spectra of 28 alleged psychedelic phenylethanamines from 15 grey-market internet vendors across North America and Europe were acquired and compared. Members from each of the principal phenylethanamine families were analyzed: eleven para-substituted 2,5-dimethoxyphenylethanamines (the 2C and 2C-T series); four para-substituted 3,5-dimethoxyphenylethanamines (mescaline analogues); two...

PeakAL: Protons I Have Known and Loved - Fifty Shades of Grey-Market Spectra. Supplementary Data

August 1, 2015 Stephen J. Chapman, Arabo A. Avanes 3 citations

1H NMR spectra of 28 alleged psychedelic phenylethanamines from 15 grey-market internet vendors across North America and Europe were acquired and compared. Members from each of the principal phenylethanamine families were analyzed: eleven para-substituted 2,5-dimethoxyphenylethanamines (the 2C and 2C-T series); four para-substituted 3,5-dimethoxyphenylethanamines (mescaline analogues); two...