Results 11 to 20 of about 169 (88)

Ethnomedicinal, Phytochemical and Pharmacological Investigations of Tetradenia riparia (Hochst.) Codd (Lamiaceae)

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, Sujogya Kumar Panda, Zilda Cristiani Gazim, Shasank S. Swain, Marisa Cassia Vieira de Araujo Bento, Jéssica da Silva Sena, Marie Jeanne Mukazayire, Luc Van Puyvelde, Walter Luyten   +8 more
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Gombapyrones E and F, New α-Pyrone Polyenes Produced by Streptomyces sp. KMC-002

Molecules, 2011
Microorganism-derived polyene polyketides have been shown to display a variety of biological activities and have attracted great interest due to their structurally intriguing chemical diversity.
Kang Ro Lee, Hak Cheol Kwon, Hyun Ok Yang, Hyun Bong Park   +3 more
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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
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Electrochemical Corey–Winter reaction. Reduction of thiocarbonates in aqueous methanol media and application to the synthesis of a naturally occurring α-pyrone

Beilstein Journal of Organic Chemistry, 2018
An electrochemical version of the Corey–Winter reaction was developed giving excellent results in aqueous methanol media (MeOH/H2O (80:20) with AcOH/AcONa buffer 0.5 M as supporting electrolyte), using a reticulated vitreous carbon as cathode in a ...
Ernesto Emmanuel López-López, José Alvano Pérez-Bautista, Fernando Sartillo-Piscil, Bernardo A. Frontana-Uribe   +3 more
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New Sorbicillinoids from the Mangrove Endophytic Fungus Trichoderma reesei SCNU-F0042

Marine Drugs, 2023
Three new dimeric sorbicillinoids (1–3) and one new 3,4,6-trisubstituted α-pyrone (5), along with seven analogues (4 and 6–11), were isolated from the mangrove endophytic fungus Trichoderma reesei SCNU-F0042 under the guidance of molecular networking ...
Jialin Li, Tao Chen, Jianchen Yu, Hao Jia, Chen Chen, Yuhua Long   +5 more
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2-Oxo-2H-chromen-3-yl 4-tert-butylbenzoate

IUCrData, 2016
In the title coumarin derivative, C20H18O4, the benzene ring of the benzoate group is oriented at a dihedral angle of 57.55 (9)° with respect to the planar chromene ring system [maximum deviation from plane is 0.027 (2) Å].
Konan René Kambo, Siaka Sosso, Abdoulaye Djandé, Rita Kakou-Yao, Abodou Jules Tenon   +4 more
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Bioactive α-Pyrone Analogs from the Endophytic Fungus Diaporthe sp. CB10100: α-Glucosidase Inhibitory Activity, Molecular Docking, and Molecular Dynamics Studies

Molecules
Two α-pyrone analogs were isolated from the endophytic fungus Diaporthe sp. CB10100, which is derived from the medicinal plant Sinomenium acutum. These analogs included a new compound, diaporpyrone F (3), and a known compound, diaporpyrone D (4).
Zhong Wang, Qingxian Ma, Guangling Wu, Yani Zhong, Bin Feng, Pingzhi Huang, Aijie Li, Genyun Tang, Xueshuang Huang, Hong Pu   +9 more
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Pd/C-mediated synthesis of α-pyrone fused with a five-membered nitrogen heteroaryl ring: A new route to pyrano[4,3-c]pyrazol-4(1H)-ones

Beilstein Journal of Organic Chemistry, 2009
Pd/C-mediated alkynylation of 5-iodo-pyrazole-4-carboxylic acid, involving the first regioselective construction of α-pyrone ring on a pyrazol moiety via tandem coupling–cyclization process, has been developed to afford pyrano[4,3-c]pyrazol-4(1H)-one in ...
Dhilli Rao Gorja, Venkateswara Rao Batchu, Ashok Ettam, Manojit Pal   +3 more
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Biosynthesis of α-pyrones

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 F. Schäberle
doaj   +1 more source

An Efficient Chemoenzymatic Approach towards the Synthesis of Rugulactone

Molecules, 2018
Rugulactone is a natural product isolated from the plant Cryptocarya rugulosa. It has shown very important biological activity as an inhibitor of the nuclear factor κB (NF-κB) activation pathway.
Theodore Tyrikos-Ergas, Vasileios Giannopoulos, Ioulia Smonou   +2 more
doaj   +1 more source