Results 51 to 60 of about 13,980,406 (134)

Synthesis of 4-methyl-2H-1,2,3-benzothiadiazine 1,1-dioxides and their further transformation via alkylation and reduction steps

open access: yes, 2019
Ortho lithiation of acetophenone ketals followed by introduction of the chlorosulphonyl group and subsequent ring closure with hydrazine monohydrate or acetohydrazide gave rise to the formation of variously substituted 4-methyl-1,2,3-benzothiadiazine 1,1-
Gyöngyvér Pusztai (7494908)   +8 more
core   +1 more source

N-Substituted 9β-Methyl-5-(3-hydroxyphenyl)morphans Are Opioid Receptor Pure Antagonists

open access: yes, 2016
The inhibition of radioligand binding and [35S]GTPγS functional assay data for N-methyl- and N-phenethyl-9β-methyl-5-(3-hydroxyphenyl)morphans (5b and 5c) show that these compounds are pure antagonists at the μ, δ, and κ opioid receptors. Since 5b and 5c
James B. Thomas (1324521)   +10 more
core   +1 more source

Organic impurity profiling of 3,4-methylenedioxyamphetamine (MDA) synthesised from helional. [PDF]

open access: yes
The organic impurity profile of 3,4-methylenedioxyamphetamine (MDA) synthesised from helional via the "twodogs" method was examined to identify route-specific and condition-specific impurities.
Mercieca, AL   +4 more
core   +1 more source

Reduced 3,4′-bi­pyrazoles carrying thio­phene and thia­zole substituents: structures of two intermediates and two products

open access: yes, 2021
Cyclo­addition reactions between 3-(5-ar­yloxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-1-(thio­phen-2-yl)prop-2-en-1-ones and thio­semicarbazide leads to the formation of reduced 3,4′-bi­pyrazole-2-carbo­thio­amides.
Manju, Nagaraja   +13 more
core   +1 more source

Expanded access to psychedelic treatments: comparing American and Canadian policies

open access: yes
General Psychiatry, Volume 38, Issue 1, February 2025.
Jérémie Richard   +2 more
wiley   +1 more source

Pharmacokinetic parameters of MDMA, MDA, HMMA, and duloxetine.

open access: yes, 2012
Cmax, maximum plasma concentration; Tmax, time from drug administration to maximum plasma concentration; AUC0-∞, area under concentration-time curve extrapolated to infinity.
Marius C. Hoener (166578)   +9 more
core   +1 more source

Necrosamine Series. II.* Synthesis of Racemic 4,5-Diaminoeicosane and of 2-Methyl-3,4-diaminononadecane [PDF]

open access: yes, 1956
Racemic 4,5-diaminoeicosane (I) and 2-methyl-3,4-diaminononadecane (II) were obtained by reaction of dibenzyl sodiotetradecylmalonate (III) with N-phthaloyl-DL-norvalinoyl chloride (IVa) and N-phthaloyl-DL-valinoyl chloride (IVb).
Alaupović, P., Proštenik, M-
core   +1 more source

Gas chromatographic mass spectrometric assay for profiling the enantiomers of 3,4-methylenedioxymethamphetamine and its chiral metabolites using positive chemical ionization ion trap mass spectrometry

open access: yes, 1997
A qualitative GC/MS profile was obtained and its mass spectrometric features characterized for the analysis of the enantiomers of (RS)-3-4-methylenedioxymethamphetamin (MDMA) and its metabolites (RS)-3,4-methleenedioxyamphetamine (ha)A), (RS)-4-hydroxy-3-
vandeWal, RMA   +6 more
core   +1 more source

Crystal structure of a fluoro analogue of 3,4-(methylenedioxy)amphetamine

open access: yes, 2015
cited By 0International audienceThe X-ray crystal structure of 6-fluoro-3,4-methylenedioxyamphetamine hydrochloride, a fluoro analogue of 3,4-(methylenedioxy)amphetamine, was established.
Pinaud, N.   +5 more
core  

Streamlined Synthesis of 6-((1H-1,2,3-Triazol-4-yl)methyl)-1H-pyrrolo [3,4-d]pyridazin-1-one System via Sequential N-Alkylation, CuAAC, and [4 + 2] Cyclization Reactions

open access: yes, 2019
An efficient sequential three-step reaction methodology for the synthesis of three new series-1-(prop-2-yn-1-yl)-1H-pyrroles, methyl 4-acetyl-1-((1H-1,2,3-triazol-4-yl)methyl)-1H-pyrrole-3-carboxylates and 6-((1H-1,2,3-triazol-4-yl)methyl)-2,6-dihydro-1H-
Clarissa P. Frizzo (1457206)   +7 more
core   +1 more source

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