Results 1 to 10 of about 20,223 (263)

Recent advances in the structures and bioactivities of benzopyrans derived from marine fungi: a review [PDF]

open access: yesFrontiers in Pharmacology
Marine fungi represent a treasure trove of bioactive secondary metabolites, with benzopyran compounds emerging as a significant class of these natural products.
Yidan Xi   +6 more
doaj   +2 more sources

Comparative Hepatoprotective Effects of Esculetin and Its Derivatives Against Oxidative Stress [PDF]

open access: yesAntioxidants
In this study, we evaluated the antioxidant activities of esculetin and four synthesized derivatives (E1, 2-oxo-2H-1-benzopyran-6,7-diyl diacetate; E2, 7-hydroxy-2-oxo-2H-1-benzopyran-6-yl acetate; E3, 7-(methoxymethoxy)-2-oxo-2H-1-benzopyran-6-yl ...
Yoonjeong Kim   +4 more
doaj   +2 more sources

Antibacterial and Antifungal Properties of New Synthetic Tricyclic Flavonoids [PDF]

open access: yesAntibiotics
Background/Objectives: The discovery of new molecules to which bacteria have not yet developed resistance is a significant medical priority. Synthetic flavonoids are good candidates for developing new antimicrobials.
Laura Gabriela Sarbu   +2 more
doaj   +2 more sources

A Structure–Activity Relationship Study on the Antioxidant Properties of Dithiocarbamic Flavanones [PDF]

open access: yesAntioxidants
The antioxidant properties of 3-dithiocarbamic flavanones have been investigated. The influence of the halogen substituents on ring A of the flavanones and the nature of the secondary amine from the dithiocarbamic moiety have been accounted.
Mihail Lucian Birsa   +1 more
doaj   +2 more sources

Synergistic effect of natural chickpea leaf exudates acids in heterocyclization: a greener protocol for benzopyran synthesis [PDF]

open access: yesRoyal Society Open Science, 2018
Without using any toxic or hazardous reagent, ligand, acid, transition metal catalyst, additives/promoters and organic solvent, green Knoevenagel condensation and tandem Knoevenagel–Michael reactions have been successfully carried out by using chickpea ...
Snehali Mali   +3 more
doaj   +1 more source

Flavone-based dual PARP-Tubulin inhibitor manifesting efficacy against endometrial cancer

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2023
Structural tailoring of the flavone framework (position 7) via organopalladium-catalyzed C–C bond formation was attempted in this study. The impact of substituents with varied electronic effects (phenyl ring, position 2 of the benzopyran scaffold) on the
Sachin Sharma   +11 more
doaj   +1 more source

Structural Basis of Inhibition of Human Insulin-Regulated Aminopeptidase (IRAP) by Benzopyran-Based Inhibitors

open access: yesFrontiers in Molecular Biosciences, 2021
Inhibition of the insulin-regulated aminopeptidase (IRAP) improves memory and cognition in animal models. The enzyme has recently been crystallized and several series of inhibitors reported.
Sudarsana Reddy Vanga   +4 more
doaj   +1 more source

Synthetic Anthocyanidins from Natural Benzopyrans [PDF]

open access: yesNatural Product Communications, 2016
A hydride abstraction strategy can be used to make anthocyanidins and isoflavylium salts from benzopyrans in good yields.
Kraus, George, Geraskin, Ivan
openaire   +3 more sources

Synthesis and characterization of new 2-amino-4-(substituted phenyl)-6-(7’’-methoxy, 3’’,4’’-dihydro, 2’’,2’’-dimethyl-2hbenzopyran) pyrimidines and their bio evaluation [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
A series of eight novel 2-amino-4-(substituted phenyl)-6-(7"- methoxy, 3",4"-dihydro, 2",2"-dimethyl-2H-benzopyran) pyrimidines were designed and synthesized by utilizing benzene-1,3-diol as starting material.
Murthy Y.L.N.   +2 more
doaj   +1 more source

Essential Rule Derived from Thermodynamics and Kinetics Studies of Benzopyran Compounds

open access: yesMolecules, 2023
Compounds with benzopyran as the core structure play an important role in the total synthesis of antioxidants, drugs, and natural products. Herein, the thermodynamic data of benzopyran compounds and their intermediates were measured and calculated by ...
Baolong Chen, Xin Hu, Xiaoqing Zhu
doaj   +1 more source

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