Results 71 to 80 of about 4,197 (216)
Synthesis of 2-(1-Naphthyl)-Coumarino-y-Pyrones [PDF]
, 1971 Condensation of o-hydroxy-acetyl-coumarins with 1-naphthoylchloride, Baker-Venkataraman rearrangement of the condensation products, followed by dehydration gave 2-(1-naphthyl)-\(y ...
K. A. Thakar, N. R. Manjaramkar
core +1 more source
Recent Approaches for the Synthesis of Pyridine and Quinoline Cores Present in Natural Products
Advanced Synthesis &Catalysis, Volume 368, Issue 10, 19 May 2026.An anthology of the most recent methods used to synthesize pyridines and quinolines found in natural products over the last decade. Pyridines, quinolines, and their derivatives represent a class of significant heterocyclic compounds that are prevalent in a multitude of natural products, including alkaloids found in plants, fungi, insects, marine ...
Carl Bowman +2 more
wiley +1 more source
Antileishmanial activity of two gamma-pyrones from Podolepsis hieracioides (Asteraceae). [PDF]
, 2003 Two gamma-pyrones isolated from the seeds of Podolepsis hieracioides (Asteraceae) have been tested for their in vitro leishmanicidal activity against the promastigote form of Leishmania donovani, L. major, L. infantum and L.
Croft, Simon L +2 more
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A Biosynthetic Numbering System for Diterpene Pyrones
Natural Product Communications, 2019 Diterpene pyrones, spiroditerpenoids, and brevianes are names given to a series of fungal meroterpenoids that share common structural features and a common biosynthetic pathway elaborated by multiple oxidations, rearrangements, and cyclizations to ...
Amjad Ayad Qatran Al-Khdhairawi +3 more
doaj +1 more source
Two new -Methoxy--Pyrones From the Mangrove Sediment-Derived SCSIO NS126
Natural Product Communications, 2021 Two new α -methoxy- γ -pyrone analogs, 2-methoxy-3-methyl-5,6-diethyl- γ -pyrone ( 2 ) and 2-methoxy-3,5-dimethyl-6-propyl- γ -pyrone ( 3 ), together with 2-methoxy-3,5-dimethyl-6-ethyl- γ -pyrone ( 1 ), firstly isolated from natural sources, were ...
Kunlong Li +6 more
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Advanced Science, Volume 13, Issue 27, 13 May 2026.This study presents the first telomere‐to‐telomere genomes and population resources for Diaporthe pathogens, uncovering the largest known fungal repertoire of secondary metabolite gene clusters. Structural variations and horizontal gene transfer drive cluster diversification, while specific rapidly evolving clusters control virulence, offering novel ...
Kainan Li +9 more
wiley +1 more source
Efficient Synthesis of 5-Amido-3-hydroxy-4-pyrones as Inhibitors of Matrix Metalloproteinases [PDF]
, 2016 3-Hydroxy-4-pyrones are a class of important metal chelators with versatile medicinal applications. An efficient pathway for the preparation of new 5-amido-3-hydroxy-4-pyrone derivatives has been developed.
Yi-Long Yan (2487691) +1 more
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Comprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 3, May 2026.ABSTRACT Liberoid coffee (Coffea liberica group), comprising varieties of Liberica and Excelsa coffee types, is gaining attention for its unique chemical composition and sensory potential. However, its quality remains under‐optimized due to limited understanding of genotype‐specific traits and processing responses.
Noor Ariefandie Febrianto, Fan Zhu
wiley +1 more source
Mechanistic Insights into Ring-Opening and Decarboxylation of 2‑Pyrones in Liquid Water and Tetrahydrofuran [PDF]
, 2016 2-Pyrones, such as triacetic acid lactone, are a promising class of biorenewable platform chemicals that provide access to an array of chemical products and intermediates.
Gerald Pollock (1969291) +5 more
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Chemistry of Pyrones, Part 3: New Podands of 4H-Pyran-4-ones
Molecules, 2000 New derivatives of 3,5-disubstituted 4H-Pyran-4-one podands (9-15) were prepared by transesterification reaction of dimethyl or diethyl 2,6-dimethyl-4H-pyran-4-one-3,5-dicarboxylate with some glycol, glycol ethers or by nucleophilic substitution of some ...
Aziz Shahrisa, Alireza Banaei
doaj +1 more source