Results 61 to 70 of about 55,156 (263)

Interaction of GABA and Excitatory Amino Acids in the Basolateral Amygdala: Role in Cardiovascular Regulation [PDF]

open access: yes, 1997
Activation of the amygdala in rats produces cardiovascular changes that include increases in heart rate and arterial pressure as well as behavioral changes characteristic of emotional arousal.
Cook, Jennifer C.   +3 more
core   +2 more sources

Structural, Electric and Dynamic Properties of (Pyrrolidinium)3[Bi2I9] and (Pyrrolidinium)3[Sb2I9]: New Lead-Free, Organic–Inorganic Hybrids with Narrow Band Gaps

open access: yesMolecules, 2023
Hybrid organic–inorganic iodides based on Bi(III) and Sb(III) provide integrated functionalities through the combination of high dielectric constants, semiconducting properties and ferroic phases.
Magdalena Rowińska   +5 more
doaj   +1 more source

Microwave-Assisted Synthesis, Structural Characterization and Assessment of the Antibacterial Activity of Some New Aminopyridine, Pyrrolidine, Piperidine and Morpholine Acetamides

open access: yesMolecules, 2021
A series of new acetamide derivatives 22–28 of primary and secondary amines and para-toluene sulphinate sodium salt have been synthesized under microwave irradiation and assessed in vitro for their antibacterial activity against one Gram-positive and two
Abdulmajeed S. H. Alsamarrai   +1 more
doaj   +1 more source

Enantioselective Total Synthesis of (—)-Acetylaranotin, a Dihydrooxepine Epidithiodiketopiperazine [PDF]

open access: yes, 2012
The first total synthesis of the dihydrooxepine-containing epidithiodiketopiperazine (ETP) (−)-acetylaranotin (1) is reported. The key steps of the synthesis include an enantioselective azomethine ylide (1,3)-dipolar cycloaddition reaction to set the ...
Codelli, Julian A.   +2 more
core   +1 more source

Tertiary alkylamines as nucleophiles in substitution reactions at heteroaromatic halide during the synthesis of the highly potent pirinixic acid derivative 2-(4-chloro-6-(2,3-dimethylphenylamino)pyrimidin-2-ylthio)octanoic acid (YS-121) [PDF]

open access: yes, 2011
YS-121 [2-(4-chloro-6-(2,3-dimethylphenylamino)pyrimidin-2-ylthio)octanoic acid] is the result of target-oriented structural derivatization of pirinixic acid.
Gabler, Matthias   +1 more
core   +2 more sources

Crystal structure of methyl 7-phenyl-6a,7,7a,8,9,10-hexahydro-6H,11aH-thiochromeno[3,4-b]pyrrolizine-6a-carboxylate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C22H23NO2S, the inner pyrrolidine ring (A) adopts an envelope conformation with the methine C atom opposite the fused C—N bond as the flap.
M. P. Savithri   +4 more
doaj   +1 more source

Antiproliferative Activity of Pyrrolidine Derivatives compound in Colon Cancer Cells

open access: yesHitit Medical Journal, 2022
Objective: Anti-cancer drug research plays an important role for chemotherapeutic treatments in various types of cancer. Pyrolidine derived compounds have been reported by many researchers to be a potent anti-cancer compound.
Seda Mesci, Melek Gül, Tuba Yıldırım
doaj   +1 more source

Azomethine Ylides—Versatile Synthons for Pyrrolidinyl-Heterocyclic Compounds

open access: yesMolecules, 2023
Azomethine ylides are nitrogen-based three-atom components commonly used in [3+2]-cycloaddition reactions with various unsaturated 2π-electron components.
Siva S. Panda   +3 more
doaj   +1 more source

Three-electron two-centred bonds and the stabilisation of cationic sulfur radicals [PDF]

open access: yes, 2014
Electronic communication in biological systems is fundamental to understanding protein signalling and electron hopping pathways. Frequently studied examples are cationic radical methionine and its functional derivatives.
Carbery, DR, Hendon, CH, Walsh, A
core   +3 more sources

Late‐Stage Functionalization of Peptides on the Solid Phase

open access: yesAngewandte Chemie International Edition, EarlyView.
Peptide modifications are essential to control pharmacodynamic and pharmacokinetic properties of peptide drugs. Consequently, strategies that allow for efficient and rapid incorporation of non‐canonical modifications into peptides in parallel formats are highly sought after.
Marius Werner   +2 more
wiley   +1 more source

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