Results 91 to 100 of about 24,125 (306)

A Systematic Review of Synthetic and Anticancer and Antimicrobial Activity of Quinazoline/Quinazolin‐4‐one Analogues

open access: yesChemistryOpen, EarlyView.
Quinazoline represents an important class of heterocycles with diverse medicinal and pharmacological significance. This review systematically examines scholarly efforts toward understanding different synthetic pathways emphasizing the role of metal and non‐metal catalysts including some miscellaneous reagents employed in the synthesis of quinazoline ...
Neha Manhas   +4 more
wiley   +1 more source

The Trials and Tribulations of Structure Assisted Design of KCa Channel Activators. [PDF]

open access: yes, 2019
Calcium-activated K+ channels constitute attractive targets for the treatment of neurological and cardiovascular diseases. To explain why certain 2-aminobenzothiazole/oxazole-type KCa activators (SKAs) are KCa3.1 selective we previously generated ...
Brown, Brandon M   +6 more
core  

A survey of liquid crystalline oxadiazoles

open access: yes, 2008
We propose a survey of those oxadiazole compounds, which are mesogenic. We will see that they can have bend-shaped molecules, a biaxial nematic phase, or other interesting peculiarities in the nematic and smectic phase.
Sparavigna, Amelia
core   +1 more source

Optimization of anti-proliferative activity using a screening approach with a series of bis-heterocyclic G-quadruplex ligands [PDF]

open access: yes, 2013
Using a phenotypic screening and SAR optimization approach, a phenyl-bis-oxazole derivative has been identified with anti-proliferative activity, optimized with the use of a panel of cancer cell lines.
CIANCIMINO, Cristina   +4 more
core   +1 more source

Total Synthesis of Phorbazole B

open access: yesMolecules, 2020
Phorbazoles are polychlorinated heterocyclic secondary metabolites isolated from a marine sponge and several of these natural products have shown inhibitory activity against cancer cells. In this work, a synthesis of the trichlorinated phorbazole B using
Yngve Guttormsen   +5 more
doaj   +1 more source

Complex‐mediated nucleophilic aromatic substitution with aryl nitriles to realize intramolecular flapping‐restricted D‐A AIEgens for bioimaging

open access: yesSmart Molecules, EarlyView.
In this work, we developed a complex‐mediated nucleophilic aromatic substitution which can generate rich D‐A AIEgens under a facile condition. The AIE mechanism of such AIEgens was unveiled and their application towards fatty liver imaging was exhibited. Abstract Donor‐acceptor (D‐A) compounds are particularly important in optoelectronic and biological
Feng Liu   +12 more
wiley   +1 more source

Evolutionary and molecular foundations of multiple contemporary functions of the nitroreductase superfamily. [PDF]

open access: yes, 2017
Insight regarding how diverse enzymatic functions and reactions have evolved from ancestral scaffolds is fundamental to understanding chemical and evolutionary biology, and for the exploitation of enzymes for biotechnology.
Akiva, Eyal   +3 more
core   +1 more source

24,4,8-Trioxa-21-aza-1,3,6(1,2)-tribenzena-2(2,3)-bicyclo[3.3.0]octanacyclooctaphane

open access: yesActa Crystallographica Section E, 2009
The crystal structure of the title compound, C26H25NO3, was determined as part of an investigation of host–guest and electron donor–acceptor complexes. The oxazole and the pyrrole rings both adopt envelope conformations.
P. R. Seshadri   +4 more
doaj   +1 more source

Access to highly substituted oxazoles by the reaction of α-azidochalcone with potassium thiocyanate

open access: yesBeilstein Journal of Organic Chemistry, 2020
The reactivity of α-azidochalcones has been explored for the preparation of highly substituted oxazoles via a 2H-azirine intermediate. The azidochalcones, when treated with potassium thiocyanate in the presence of potassium persulfate, lead to 2,4,5 ...
Mysore Bhyrappa Harisha   +4 more
doaj   +1 more source

Elucidating the Role and Mechanism of Alpha‐Enolase in Senescent Amelioration via Metabolic Reprogramming

open access: yesCell Proliferation, EarlyView.
KB2764 interacted with alpha‐enolase (ENO1) and pyruvate kinase M (PKM), ultimately leading to PKM phosphorylation of ENO1. KB2764 consequently increased mitochondrial ATP production and decreased glycolysis dependence. Furthermore, the action of KB2764 extends its application to extend the lifespan of Caenorhabditis elegans.
Yun Haeng Lee   +13 more
wiley   +1 more source

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