Results 51 to 60 of about 1,535,483 (232)

Advances in Pharmacology of Isatin and its Derivatives: A Review

open access: yes, 2015
Isatin (1H-indole-2,3-dione), an indole derivative of plant origin, is involved in many pharmacological activities like antiallergic, antimalarial, antiviral and antimicrobial; isatin and its derivatives have been found to show promising results against ...
Maalik, Aneela, Khan, Farhan A
core   +1 more source

N-Alkyl-Substituted Isatins Enhance P2X7 Receptor-Induced Interleukin-1β Release from Murine Macrophages

open access: yesMediators of Inflammation, 2016
Extracellular adenosine 5′-triphosphate (ATP) activates the P2X7 receptor channel to induce the rapid release of the proinflammatory cytokine, interleukin- (IL-) 1β, from macrophages. Microtubule rearrangements are thought to be involved in this process.
Ronald Sluyter, Kara L. Vine
doaj   +1 more source

Evaluation of Diuretic Activity of Isatin Derivatives in Wistar Rats

open access: yes, 2013
In the present studies we have synthesized ten derivatives of novel isatin-3-[N2-(2-benzalaminothiazol-4-yl)]hydrazone and characterized by the help of physical and spectral data.
J. Venkateshwar Rao   +3 more
core   +1 more source

Effect of Structure on Charge Distribution in the Isatin Anions in Aprotic Environment: Spectral Study

open access: yesMolecules, 2017
Five isatin anions were prepared by deprotonation of initial isatins in aprotic solvents using basic fluoride and acetate anions (F− and CH3COO−). The F− basicity is sufficient to deprotonate isatin NH hydrogen from all the studied compounds.
Pavol Tisovský   +9 more
doaj   +1 more source

Flipping the Card With Enantiodivergent Organocatalysis

open access: yesChemistry – A European Journal, EarlyView.
This minireview elaborates on recent organocatalytic strategies for achieving enantiodivergence—the ability to access both product enantiomers using a single chiral catalyst. It highlights how achiral stimuli, such as solvent polarity and chemical additives, along with minimal catalyst modifications, trigger stereochemical inversions in reactions ...
Debora Iapadre   +3 more
wiley   +1 more source

Synthesis of 4-Amino-4,5-dihydro-1H-1,2,4-triazole-5-ones and their Isatin-3-imine Derivatives

open access: yesMolecules, 2005
Iminoester hydrochlorides 1 have been synthesized. These compounds werethen converted into ester ethoxycarbonyl hydrazones 2, from which in turn a new seriesof substituted 4-amino-4,5-dihydro-1H-1,2,4-triazole-5-ones, 3, was then prepared.Finally a set ...
Bahittin Kahveci
doaj   +1 more source

DABCO-Catalyzed Mono-/Diallylation of N-Unsubstituted Isatin N,N′-Cyclic Azomethine Imine 1,3-Dipoles with Morita-Baylis-Hillman Carbonates

open access: yesMolecules, 2023
Allylation of N-unsubstituted isatin N,N′-cyclic azomethine imines with Morita-Baylis-Hillman carbonates in the presence of 1–10 mol% DABCO in DCM at room temperature, rapidly gave N-allylated and N, β-diallylated isatin N,N′-cyclic azomethine imine 1,3 ...
Qiumi Wang   +10 more
doaj   +1 more source

Isatin Derivatives as Inhibitors of Microtubule Assembly [PDF]

open access: yes, 2008
This thesis describes the rationale, design, and syntheses of derivatives of isatin (1-H-indole-2,3-dione). Isatin was identified, during a high throughput screen of 10,000 compounds, as a potential scaffold for microtubule-destabilizing agents ...
Beckman, Karen
core  

Bioactive and luminescent indole and isatin based gold(I) derivatives [PDF]

open access: yes, 2019
A series of luminescent monometallic [AuL(PPh3)] (1-3) and bimetallic [Au2(μ-dppe)L2] (4, 6, 8) and [Au2(μ-dppp)L2] (5, 7, 9) complexes, where L is either 4-cyano-indole, isatin, or 5,7-dimethyl-isatin, and dppe and dppp are 1,2-bis(diphenylphosphino ...
Marzo, I.   +13 more
core   +1 more source

Mesityl‐Substituted Azuleno[1′,2′:4,5]pyrrolo[2,3‐b]quinoxalines: Synthesis, Functionalization, Photophysical, and Electrochemical Properties

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Azuleno[1′,2′:4,5]pyrrolo[2,3‐b]quinoxaline with a mesityl group as a solubilizing group was synthesized. By synthesizing derivatives in which various functional groups were introduced into two electronically distinct sites, the pyrrole nitrogen atom and the azulene five‐membered ring, we were able to reveal that the photophysical and electrochemical ...
Ryuta Sekiguchi   +6 more
wiley   +1 more source

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