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Andrew R Chadeayne

5 papers in the library · 21 citations · publishing 2020-2025

Papers

Serotonin 1A Receptors Modulate Serotonin 2A Receptor-Mediated Behavioral Effects of 5-Methoxy-N,N-dimethyltryptamine Analogs in Mice.

ACS chemical neuroscience December 18, 2024 Grant C Glatfelter, Allison A Clark, Natalie G Cavalco et al. 14 citations

5-MeO-DMT and its analogs bind to multiple serotonin and adrenergic receptors, with potent activity at 5-HT2A and 5-HT1A receptors. In mice, these compounds induce head twitch responses (a proxy for psychedelic-like effects) with varying potencies (ED50 0.2–1.8 mg/kg) and maximal effects (20–60 head twitches per 30 minutes), while higher doses cause hypothermia and reduced movement (ED50 3.2–20.6 mg/kg). Blocking 5-HT1A receptors enhances head twitch responses, unmasking activity in some analogs and increasing maximal responses to 40–90 head twitches per 30 minutes, indicating that 5-HT1A activation dampens 5-HT2A-mediated psychedelic-like effects. Suppression of head twitch responses by 5-HT1A only occurred at high 5-MeO-DMT doses, suggesting other receptors also modulate these effects.

The methanol and ethanol solvates of 4-glutarato-N,N-diisopropyltryptamine

Acta Crystallographica Section E: Crystallographic Communications September 22, 2022 Maria Naeem, Barbara E. Bauer, Andrew R Chadeayne et al.

The solid-state structures of two solvated forms of 4-glutarato-N,N-diisopropyltryptamine were determined by single-crystal X-ray diffraction: a methanol monosolvate and an ethanol monosolvate. In both, the compound exists as a zwitterion with a protonated tertiary ammonium and a deprotonated glutarato carboxylate. The tryptamine zwitterions and alcohol solvates combine to produce near identical hydrogen-bonding networks, with N—H...O and O—H...O hydrogen bonds joining the molecules together in two-dimensional networks parallel to the (100) plane.

‘Foxtrot’ fumarate: a water-soluble salt of N,N-diallyl-5-methoxytryptamine (5-MeO-DALT)

Acta Crystallographica Section E: Crystallographic Communications March 19, 2021 Duyen N. K. Pham, Vamshikrishna Reddy Sammeta, Andrew R Chadeayne et al.

The synthesis and solid-state structure of the fumarate salt of the synthetic psychedelic 5-methoxy-N,N-diallyltryptamine (5-MeO-DALT) is reported. This work describes the chemical preparation and crystallographic characterization of this compound, providing structural details of its salt form.