The chemistry of Brazilian Lauraceae. LXV. 5, 7, 8, 3', 4', 5' - Hexamethoxyflavone from an Aniba species [PDF]
Aniba species (Lauraceae) are characterized by the presence of neolignans or of 6-aryl (or 6-styryl-) 2-pyrones. Flavonoids occur either together with pyrones or, in rare cases, as predominant micromolecular type. The branch wood of an Aniba species from
Sergio de H. Cavalcante +3 more
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Synthesis of cyercenes and yangonin by a pyrone aldol protocol
A number of 6-alkenyl pyrones were synthesized using an aldol reaction followed by a tosylate elimination sequence.
Kyle Podolak, George A. Kraus
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Breaking Down Barriers: CorA Effectively Targets Staphylococcal Biofilms in Vitro and in Vivo. [PDF]
Corallopyronin A (CorA), a natural alpha‐pyrone antibiotic, penetrates Staphylococcus aureus biofilms and inhibits RNA polymerase. This work demonstrates CorA's superior efficacy compared to rifampicin and dalbavancin in reducing viable loads in biofilms both in vitro and in vivo. Graphic created in https://BioRender.com.
De Benedetti S +21 more
europepmc +2 more sources
Inverse-Electron-Demand Diels-Alder Reactions of 2-Pyrones: Bridged Lactones and Beyond.
Inverse-electron-demande Diels-Alder (IEDDA) reactions of electron-poor 2-pyrones as electrophilic dienes have been extensively studied in the past fifty years.
Guanghao Huang, C. Kouklovsky, A. Torre
semanticscholar +1 more source
Benzo-pyrones for reducing and controlling lymphoedema of the limbs. [PDF]
Background Lymphoedema is the accumulation of excess fluid in the body caused by obstruction of the lymphatic drainage mechanisms. Treatment with Benzo-pyrones is thought to reduce fluid forming in the subcutaneous tissues and reduce pain and discomfort ...
Badger, Caroline M. A. +3 more
core +1 more source
Adsorption Behaviour of [(4-Hydroxy-6-methyl-2-oxo-2Hpyran- 3-yl)-(4-methoxy-phenyl)-1methyl]-urea on Stainless Steel in Phosphoric Media [PDF]
The adsorption of [(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)- methyl]-urea on iron in phosphoric media was studied by using electrochemical technique. The adsorption mechanism was investigated using adsorption isotherms.
Ajanaku, K. O. +4 more
core +3 more sources
Chemical epigenetic modification on a marine-derived fungus Aspergillus terreus RA2905 using a histone deacetylase inhibitor, suberoylanilide hydroxamic acid (SAHA), resulted in a significantly changed metabolic profile.
Jing-Shuai Wu +7 more
semanticscholar +1 more source
Two New Bioactive α-Pyrones from Hypericum japonicum
Hypericum japonicum (Guttiferae), a type of annual or perennial herb, has been historically applied to cure infectious hepatitis, acute and chronic hepatitis, gastrointestinal disorder, and internal hemorrhage.
Linzhen Hu +7 more
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استخراج و خالص سازی ماده موثره دارویی γ-Pyrones (خلین و ویسناژین) از گیاه Ammi Visnaga L. [PDF]
گیاه Ammi Visnaga Lam. (تیره جعفری)، از جمله گیاهان دارویی ارزشمند بومی کشور می باشد که حاوی ماده موثرهدارویی γ-Pyrones (عمدتا محتوی خلین و ویسناژین) است.
محمد حاجی ابوالحسنی
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Coumarins, Xanthones and Related Compounds
It has long been known that coumarins (γ-pyrones) and xanthones (α-pyrones) together form a large class of naturally occurring compounds exhibiting a wide range of biological activities.[...]
Pascal Richomme
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