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Duyen N. K. Pham

14 papers in the library · 266 citations · publishing 2019-2023

Papers

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Bis(4-acetoxy-N-ethyl-N-n-propyltryptammonium) fumarate–fumaric acid (1/1)

IUCrData September 7, 2023 Duyen N. K. Pham, Nathan Sackett, Andrew R Chadeayne et al. 1 citation

The solid-state structure of the title salt/adduct (systemic name: bis{[2-(4-acetyloxy-1 H -indol-3-yl)ethyl](ethyl)propylazanium} but-2-enedioate–( E )-butenedioic acid (1/1)), 2C 17 H 25 N 2 O 2 + ·C 4 H 2 O 4 2− ·C 4 H 4 O 4 , was determined by single-crystal X-ray diffraction. The asymmetric unit consists of a singly protonated tryptammonium cation, one half of a fumarate dianion and one...

Receptor Binding Profiles for Tryptamine Psychedelics and Effects of 4-Propionoxy-N,N-dimethyltryptamine in Mice

ACS Pharmacology & Translational Science March 10, 2023 Marilyn Naeem, Grant C. Glatfelter, Duyen N. K. Pham et al. 25 citations

Analogues of 4-phosphoryloxy-N,N-dimethyltryptamine (psilocybin) are being sold on recreational drug markets and developed as potential medications for psychedelic-assisted therapies. Many of these tryptamine-based psilocybin analogues produce psychedelic-like effects in rodents and humans primarily by agonist activity at serotonin 2A receptors (5-HT2A). However, the comprehensive...

Structure–Activity Relationships for Psilocybin, Baeocystin, Aeruginascin, and Related Analogues to Produce Pharmacological Effects in Mice

ACS Pharmacology & Translational Science November 2, 2022 Eline Pottie, Marilyn Naeem, Vamshikrishna Reddy Sammeta et al. 91 citations

4-Phosphoryloxy-N,N-dimethyltryptamine (psilocybin) is a naturally occurring tertiary amine found in many mushroom species. Psilocybin is a prodrug for 4-hydroxy-N,N-dimethyltryptamine (psilocin), which induces psychedelic effects via agonist activity at the serotonin (5-HT) 2A receptor (5-HT2A). Several other 4-position ring-substituted tryptamines are present in psilocybin-containing...

Synthesis, Structural Characterization, and Pharmacological Activity of Novel Quaternary Salts of 4-Substituted Tryptamines

ACS Omega July 5, 2022 Grant C. Glatfelter, Duyen N. K. Pham, Donna Walther et al. 14 citations

Aeruginascin (4-phosphoryloxy-N,N,N-trimethyltryptammonium) is an analogue of psilocybin (4-phosphoryloxy-N,N-dimethyltryptamine) that has been identified in several species of psilocybin-containing mushrooms. Our team previously reported the synthesis, structural characterization, and biological activity of the putative metabolite of aeruginascin (4-hydroxy-N,N,N-trimethyltryptammonium;...

Genetic Survey of Psilocybe Natural Products

ChemBioChem May 18, 2022 Sebastian Dörner, Kai Rogge, Janis Fricke et al. 43 citations

Abstract Psilocybe magic mushrooms are best known for their main natural product, psilocybin, and its dephosphorylated congener, the psychedelic metabolite psilocin. Beyond tryptamines, the secondary metabolome of these fungi is poorly understood. The genomes of five species ( P. azurescens , P. cubensis , P. cyanescens , P. mexicana , and P. serbica ) were browsed to understand more profoundly...

5-Methoxy-N,N-di-n-propyltryptamine (5-MeO-DPT): freebase and fumarate

Acta Crystallographica Section E Crystallographic Communications April 13, 2021 Duyen N. K. Pham, Andrew R Chadeayne, James A. Golen et al. 3 citations

The solid-state structures of the synthetic psychedelic 5-methoxy- N , N -di- n -propyltryptamine (5-MeO-DPT) {systematic name: N -[2-(5-methoxy-1 H -indol-3-yl)ethyl]- N -propylpropan-1-amine}, C 17 H 25 N 2 O, and its fumarate salt, bis(5-methoxy- N , N -di- n -propyltryptammonium) fumarate (systematic name: bis{ N -[2-(5-methoxy-1 H -indol-3-yl)ethyl]- N -propylpropan-1-aminium}...

2,5-Dimethylbufotenine and 2,5-dimethylbufotenidine: novel derivatives of natural tryptamines found in Bufo alvarius toads

Acta Crystallographica Section E Crystallographic Communications January 29, 2021 Duyen N. K. Pham, Andrew R Chadeayne, James A. Golen et al. 7 citations

The solid-state structure of the bufotenine derivative bis(5-methoxy-2, N , N -trimethyltryptammonium) (5-MeO-2-Me-DMT) fumarate (systematic name: bis{[2-(5-methoxy-2-methyl-1 H -indol-3-yl)ethyl]dimethylazanium} (2 E )-but-2-enedioate), 2C 14 H 21 N 2 O + ·C 4 H 2 O 4 2− , the bufotenidine derivative 5-methoxy-2, N , N , N -tetramethyltryptammonium (5-MeO-2-Me-TMT) iodide {systematic name:...

Psilacetin derivatives: fumarate salts of the methyl–ethyl, methyl–allyl and diallyl variants of the psilocin prodrug

Acta Crystallographica Section E Crystallographic Communications January 8, 2021 Duyen N. K. Pham, Andrew R Chadeayne, James A. Golen et al. 9 citations

The solid-state structures of the salts of three psilacetin derivatives, namely, 4-acetoxy- N -ethyl- N -methyltryptammonium (4-AcO-MET) hydrofumarate {systematic name: [2-(4-acetyloxy-1 H -indol-3-yl)ethyl](methyl)ethylazanium 3-carboxyprop-2-enoate}, C 15 H 21 N 2 O 2 + ·C 4 H 3 O 4 − , 4-acetoxy- N -allyl- N -methyltryptammonium (4-AcO-MALT) hydrofumarate {systematic name: [2-(4-acetyloxy-1...

Active Metabolite of Aeruginascin (4-Hydroxy-N,N,N-trimethyltryptamine): Synthesis, Structure, and Serotonergic Binding Affinity

ACS Omega July 2, 2020 Andrew R Chadeayne, Duyen N. K. Pham, Brian G. Reid et al. 31 citations

The putative active metabolite of aeruginascin, a naturally occurring tryptamine of "magic mushrooms," has been synthesized and structurally characterized. Competitive radioligand binding assays demonstrate that it has a high affinity at human serotonin receptors 5-HT1A, 5-HT2A, and 5-HT2B, though it does not bind at the 5-HT3 receptor, where activity was previously predicted.

Norpsilocin: freebase and fumarate salt

Acta Crystallographica Section E Crystallographic Communications March 27, 2020 Andrew R Chadeayne, Duyen N. K. Pham, James A. Golen et al. 13 citations

The solid-state structures of the naturally occurring psychoactive tryptamine norpsilocin {4-hydroxy- N -methyltryptamine (4-HO-NMT); systematic name: 3-[2-(methylamino)ethyl]-1 H -indol-4-ol}, C 11 H 14 N 2 O, and its fumarate salt (4-hydroxy- N -methyltryptammonium fumarate; systematic name: bis{[2-(4-hydroxy-1 H -indol-3-yl)ethyl]methylazanium} but-2-enedioate), C 11 H 15 N 2 O + ·0.5C 4 H 2...

Bis(4-hydroxy-N-isopropyl-N-methyltryptammonium) fumarate: a new crystalline form of miprocin

Acta Crystallographica Section E Crystallographic Communications March 10, 2020 Andrew R Chadeayne, Duyen N. K. Pham, James A. Golen et al. 12 citations

The title compound, bis(4-hydroxy- N -isopropyl- N -methyltryptammonium) (4-HO-MiPT) fumarate (systematic name: bis{[2-(4-hydroxy-1 H -indol-3-yl)ethyl](methyl)propan-2-ylazanium} but-2-enedioate), 2C 14 H 21 N 2 O + ·C 4 H 2 O 4 2− , has a singly protonated tryptammonium cation and one half of a fumarate dianion in the asymmetric unit. The tryptammonium and fumarate ions are held together in...

The fumarate salts of the N-isopropyl-N-methyl derivatives of DMT and psilocin

Acta Crystallographica Section E Crystallographic Communications August 15, 2019 Andrew R Chadeayne, Duyen N. K. Pham, James A. Golen et al. 10 citations

The solid-state structures of the salts of two substituted tryptamines, namely N -isopropyl- N -methyltryptaminium (MiPT) fumarate {systematic name: [2-(1 H -indol-3-yl)ethyl](methyl)propan-2-ylazanium 3-carboxyprop-2-enoate}, C 14 H 21 N 2 + ·C 4 H 3 O 4 − , and 4-hydroxy- N -isopropyl- N -methyltryptaminium (4-HO-MiPT) fumarate monohydrate {systematic name: [2-(4-hydroxy-1 H...