Results 21 to 30 of about 737,596 (164)
Bioactive Alpha-Pyrone and Phenolic Glucosides from the Marine-Derived Metarhizium sp. P2100
Journal of Fungi, 2022 Glycoside compounds have attracted great interest due to their remarkable and multifarious bioactivities. In this study, four hitherto unknown 4-methoxy-β-D-glucosyl derivatives were obtained and identified from the marine-derived fungus Metarhizium sp ...
Zhong-Lian Ma +9 more
doaj +1 more source
Two new α-pyrone-containing polyketides isolated from the fungus Aspergillus aureoterreus
, 2022 Two undescribed α-pyrone-containing polyketide derivatives designated aurovertins V (1) and W (2), and a known analogue (3), were isolated from the fungus Aspergillus aureoterreus.
Beiping Zhou (12406809) +3 more
core +1 more source
ANALGESIC ACTIVITY OF SOME NEW SYNTHETIC DIBENZO-α-PYRONES DERIVATIVES
INTERNATIONAL JOURNAL OF RESEARCH IN AYURVEDA & PHARMACY, 2014 Following standard Hurtley reaction, by using 2 - Bromobenzoic acid, resorcinol and NaOH in the presence of CuSO 4 solution as a catalyst, a clay coloured solid of dibenzo - α - pyrone was prepared. This resulting solid of DBαP was then reacted with various amines respectively, formaldehyde and ethanol and refluxed for 1.5 h as per Mannich reaction ...
Shalini Sawhney +3 more
openaire +1 more source
Nocapyrones: α- and γ-Pyrones from a Marine-Derived Nocardiopsis sp.
Marine Drugs, 2014 One new α-pyrone (nocapyrone R (1)), and three known γ-pyrones (nocapyrones B, H and L (2–4)) were isolated from the culture extract of a Nocardiopsis strain collected from marine sediment.
Youngju Kim +7 more
doaj +1 more source
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).
Chae-Yoon Yim +12 more
doaj +1 more source
A Concise Synthesis of Rhodanthpyrone A and B, Natural 4-(Hydroxyphenyl)-substituted α-Pyrones
Natural Product Communications, 2017 A concise synthesis of rhodanthpyrone A and B was accomplished via a Suzuki coupling reaction. To find the conditions appropriate to install hydroxyphenyl moieties to the α-pyrone skeleton, a model study was conducted using commercially available boronic
Young Taek Han
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Frontiers in Pharmacology, 2022 Tetradenia riparia Hochsteter codd. (Lamiaceae) in its native African continent, is considered one of the most popular aromatic medicinal plants. In folk medicine it may be used as an infusion to treat respiratory problems, cough, headache, stomach pain,
Sujogya Kumar Panda +8 more
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A Short Synthesis of Delavatine A Unveils New Insights into Site-Selective Cross-Coupling of 3,5-Dibromo-2-pyrone [PDF]
, 2019 The recognition of latent symmetry in delavatine A has enabled a short synthesis of the natural product starting from 3,5-dibromo-2-pyrone. The concise synthetic route features a cascade process involving a 6π electrocyclization to construct the indane ...
Kevlishvili, Ilia +14 more
core +1 more source
, 2023 Talarolactones A–G (1–7), seven novel α-pyrone adducts with unprecedented scaffolds, together with two pairs of α-pyrone monomers [(±)-8 and (±)-9)] were isolated from Talaromyces adpressus.
Weiguang Sun (2626117) +10 more
core +1 more source
Strategies for the synthesis of brevipolides
Beilstein Journal of Organic Chemistry, 2021 In recent years fifteen 5,6-dihydro-α-pyrone derivatives, bearing either a distinctive cyclopropane or furan ring and named brevipolides A–O (1–15), have been isolated from the invasive plant Hyptis brevipes Poit.
Yudhi D. Kurniawan, A'liyatur Rosyidah
doaj +1 more source