Results 111 to 120 of about 15,472 (254)

Synthesis and spectroscopic properties of β-triazoloporphyrin–xanthone dyads

open access: yesBeilstein Journal of Organic Chemistry, 2015
A novel series of β-triazoloporphyrin–xanthone conjugates and xanthone-bridged β-triazoloporphyrin dyads has been synthesized in moderate to good yields through Cu(I)-catalyzed Huisgen 1,3-dipolar cycloaddition reaction of copper(II) 2-azido-5,10,15,20 ...
Dileep Kumar Singh, Mahendra Nath
doaj   +1 more source

In silico design of 2,2'-dihydroxybenzophenones and xanthone analogues to inhibit human glutathione transferase's (hGSTs) involvement in Multiple Drug Resistance. [PDF]

open access: yes, 2015
Glutathione S-transferases catalyze the conjugation of glutathione (GSH) to a variety of hydrophobic substrates, rendering them hydrophilic and facilitating their metabolic processing and secretion from the cell. GSTs are involved in major detoxification
Eleni, Douni   +9 more
core  

DI-XANTHONES. PART I. CHROMONO-2' : 3'-2 : 3-XANTHONE

open access: yes, 1957
2 : 5-Diphenoxytereplithalic acid, prepared by condensing 2 : 5-dibromoterephthalic acid with sodium phenoxide, using excess of phenol as a solvent or a diluent, in presence of capper powder, has been cyclised by two different methods to yield chromono-2' : 3-2: 3-xanthone.
TARA SINGH, S. N. BEDI
openaire   +1 more source

Anti-Inflammatory Properties of Oxygenated Isocoumarins and Xanthone from Thai Mangrove-Associated Endophytic Fungus Setosphaeria rostrata

open access: yesMolecules
Chronic inflammation plays a crucial role in the development and progression of numerous chronic diseases. To search for anti-inflammatory metabolites from endophytic fungi isolated from plants growing in Thai mangrove areas, a chemical investigation of ...
Kedkarn Koopklang   +7 more
doaj   +1 more source

Xanthones and Cancer

open access: yes, 2020
Xanthones are a class of heterocyclic natural products that have been widely studied for their pharmacological potential. In fact, they have been serving as scaffolds for the design of derivatives focusing on drug development. One of the main study targets of xanthones is their anticancer activity. Several compounds belonging to this class have already
Klein-Júnior, Luiz C   +5 more
openaire   +1 more source

Natural product compounds from Calophyllum depressinervosum [PDF]

open access: yes, 2016
Our detailed study on the phytochemistry of the stem bark of Calophyllum depressinervosum resulted in the isolation of four xanthones and one coumarin. The xanthones are trapezifolixanthone (1), macluraxanthone (2), ananixanthone (3), caloxanthone C (4 ...
Daud, Shaari   +5 more
core  

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