Results 61 to 70 of about 13,980,406 (134)

Access to 3-Methyl-4-methylene-N-tosylpyrrolidine and 3,4-Dimethyl-N-tosylpyrroline by Ruthenium-Catalyzed Cascade Cycloisomerization/Isomerization Reactions

open access: yes, 2004
New RuCl2(benzimidazole)(arene) complexes have been prepared. Upon reaction with 1,1-diphenylprop-2-ynol they generate catalyst precursors which perform the cycloisomerization of diallyltosylamide into 3-methyl-4-methylene-N-tosylpyrrolidine.
Semeril, D   +21 more
core   +2 more sources

Photolysis of the 3,4-Epoxy-2-methyl-1-phenylbutan-1-ones and stereochemical assignment of the 3,4-Epoxy-2-methyl-1-phenylbutan-1-ols and 2-Methyl-1-phenylbut-3-en-1-ols

open access: yes, 1977
The stereochemistry of the diastereoisomeric 2-methyl-1-phenylbut-3-en- 1-ols, 3,4-epoxy-2-methyl-1-phenylbutan-1-ols and 3,4-epoxy-2-methyl-1- phenylbutan-1-ones have been established.
GSC Hii, JM Coxon
core   +1 more source

Effect of 3,4-Methylenedioxyamphetamine on Dendritic Spines Dynamics in Rat Neocortical Neurons - Involvement of Heat Shock Protein 27.

open access: yes, 2011
Along with chronic neurotoxic effects, the long-term consumption of amphetamines has been associated to psychiatric symptoms and memory disturbances. Dendritic spine dynamics have been discussed as a possible morphological correlate.
Karsten Ruscher   +18 more
core   +1 more source

Synthesis and In Vitro Opioid Receptor Functional Antagonism of Methyl-Substituted Analogues of (3R)-7-Hydroxy-N-[(1S)-1-{[(3R,4R)-4-(3-hydroxyphenyl)-3,4-dimethyl-1-piperidinyl]methyl}-2-methylpropyl]-1,2,3,4-tetrahydro-3-isoquinolinecarboxamide (JDTic)

open access: yes, 2016
In previous structure−activity relationship (SAR) studies, (3R)-7-hydroxy-N-[(1S)-1-{[(3R,4R)-4-(3-hydroxyphenyl)-3,4-dimethyl-1-piperidinyl]methyl}-2-methylpropyl]-1,2,3,4-tetrahydro-3-isoquinolinecarboxamide (JDTic, 3) was identified as the first ...
James B. Thomas (1324521)   +5 more
core   +1 more source

N-(6-Amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl) derivatives of glycine, valine, serine, threonine and methionine: interplay of molecular, molecular-electronic and supramolecular structures

open access: yes, 2000
In each of N-(6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl)valine, C10H15N5O4 (3) (orthorhombic, P2(1)2(1)2(1)), N-(6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl)serine monohydrate, C8H11N5O5.
Domingo, J C   +9 more
core   +1 more source

Synthesis and Radioligand Binding Studies of C-5- and C-8-Substituted 1-(3,4-Dimethoxybenzyl)-2,2-dimethyl-1,2,3,4-tetrahydroisoquinoliniums as SK Channel Blockers Related to N-Methyl-laudanosine and N-Methyl-noscapine

open access: yes, 2016
The synthesis and the 125I-apamin binding studies of original C-5- and C-8-substituted 1-(3,4-dimethoxy-benzyl)-2,2-dimethyl-1,2,3,4-tetrahydroisoquinoliniums and 1-(3,4-dimethoxy-benzyl)-6,6-dimethyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridiniums were ...
Jacqueline Scuvée-Moreau (2472079)   +3 more
core   +1 more source

The synthesis and 2D-NMR spectroscopy of benzo[3,4]phenanthro[1,2-b]thiophene, benzo[3,4]phenanthro[2,1-b]thiophene and their methyl analogs as potential mutagenic substances

open access: yes, 1985
Syntheses of benzo[3,4]phenanthro[l,2-b]thiophene (35.), benzo[3,4]- phenanthro[2,l-b]thiophene (41), 1-methylbenzo[3,4]phenanthro[l,2-b]- thiophene (47), 1-methyl-benzo[3,4]phenanthro[2,l-b]thiophene (52), ll-methyl-benzo[3,4]phenanthro[l,2-b]thiophene (
Stuart, John G.
core  

Multiyear Wastewater Monitoring of High-Risk Substances Surrounding an Annual Electronic Dance Music Festival, Las Vegas, Nevada, USA, 2023-2025: Surveillance Study. [PDF]

open access: yesJMIR Public Health Surveill
Gerrity D   +9 more
europepmc   +1 more source

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