Biosynthesis of α-pyrones [PDF]
Beilstein Journal of Organic Chemistry, 2016 The α-pyrone moiety is a structural feature found in a huge variety of biologically active metabolites. In recent times new insights into additional biosynthetic mechanisms, yielding in such six-membered unsaturated ester ring residues have been obtained.
Till Schäberle
exaly +3 more sources
Natural Dibenzo-α-Pyrones and Their Bioactivities [PDF]
Molecules, 2014 Natural dibenzo-α-pyrones are an important group of metabolites derived from fungi, mycobionts, plants and animal feces. They exhibit a variety of biological activities such as toxicity on human and animals, phytotoxicity as well as cytotoxic ...
Daowan Lai, Ligang Zhou, Ziling Mao
exaly +4 more sources
Saccharomonopyrones A–C, New α-Pyrones from a Marine Sediment-Derived Bacterium Saccharomonospora sp. CNQ-490 [PDF]
Marine Drugs, 2017 Intensive study of the organic extract of the marine-derived bacterium Saccharomonospora sp. CNQ-490 has yielded three new α-pyrones, saccharomonopyrones A–C (1–3).
Heonjoong Kang +2 more
exaly +4 more sources
Emission solvatochromic, solid-state and aggregation-induced emissive α-pyrones and emission-tuneable 1H-pyridines by Michael addition–cyclocondensation sequences [PDF]
Beilstein Journal of Organic Chemistry, 2019 Starting from substituted alkynones, α-pyrones and/or 1H-pyridines were generated in a Michael addition–cyclocondensation with ethyl cyanoacetate. The peculiar product formation depends on the reaction conditions as well as on the electronic substitution
Natascha Breuer +3 more
doaj +2 more sources
Selected α-pyrones from the plants Cryptocarya novoguineensis (Lauraceae) and Piper methysticum (Piperaceae) with activity against Haemonchus contortus in vitro [PDF]
International Journal for Parasitology: Drugs and Drug Resistance, 2019 Due to the widespread occurrence and spread of anthelmintic resistance, there is a need to develop new drugs against resistant parasitic nematodes of livestock animals.
H.M.P. Dilrukshi Herath +12 more
doaj +2 more sources
Two New Bioactive α-Pyrones from Hypericum japonicum [PDF]
Molecules, 2016 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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Akanthopyrones A–D, α-Pyrones Bearing a 4-O-Methyl-β-d-glucopyranose Moiety from the Spider-Associated Ascomycete Akanthomyces novoguineensis [PDF]
Molecules, 2017 Hypocrealean fungi have proved to be prolific bioactive metabolite producers; they have caught the attention of mycologists throughout the world. However, only a few studies on the insect and spider parasitic genus Akanthomyces have so far been carried ...
Wilawan Kuephadungphan +6 more
doaj +2 more sources
An Overview of α-Pyrones as Phytotoxins Produced by Plant Pathogen Fungi [PDF]
MoleculesCrop diseases negatively affect the quality and quantity of agricultural products, with significant economic and social consequences. These problems become emergencies in a world where the safe production of food for human health is becoming increasingly
Antonio Evidente
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Phloroglucinol α-Pyrones from Helichrysum: A Review on Structural Diversity, Plant Distribution and Isolation [PDF]
PlantsHelichrysum species (Asteraceae) are renowned for their diverse phytochemical profiles and traditional medicinal applications. Among their specialized metabolites, phloroglucinol-α-pyrone derivatives represent a structurally unique and pharmacologically ...
Yulian Voynikov
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Production of New Antibacterial 4-Hydroxy-α-Pyrones by a Marine Fungus Aspergillus niger Cultivated in Solid Medium [PDF]
Marine Drugs, 2019 Four 4-hydroxy-α-pyrones including three new ones named nipyrones A−C (1−3) together with one known analogue germicidin C (4) were discovered from a marine sponge-derived fungus Aspergillus niger cultivated in a solid rice culture. Their
Lijian Ding +6 more
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