Results 31 to 40 of about 15,469 (227)

Tricarbonyl(η6-4′,7-dimethoxyisoflavone)chromium(0)

open access: yesActa Crystallographica Section E, 2009
The metal atom of the Cr(CO)3 unit of the title compound, [Cr(C17H14O4)(CO)3], is coordinated to the methoxyphenyl ring of the isoflavone ligand; the Cr(CO)3 unit exhibits a three-legged piano-stool conformation.
Johannes H. van Tonder   +2 more
doaj   +1 more source

Divergent Asymmetric Total Synthesis of All Four Pestalotin Diastereomers from (R)-Glycidol

open access: yesMolecules, 2020
All four chiral pestalotin diastereomers were synthesized in a straightforward and divergent manner from common (R)-glycidol. Catalytic asymmetric Mukaiyama aldol reactions of readily-available bis(TMSO)diene (Chan’s diene) with (S)-2 ...
Mizuki Moriyama   +3 more
doaj   +1 more source

The management of secondary lower limb lymphoedema in cancer patients: A systematic review. [PDF]

open access: yes, 2014
BACKGROUND: Lower limb lymphoedema is a recognised complication of cancer commonly encountered in palliative care, associated with reduced mobility and poor quality of life.
Lymphoedema Framework   +3 more
core   +1 more source

Di-µ-(1-(3-(1H-imidazol-1-yl)propyl)-2-methyl-4-oxo-1,4-dihydropyridin-3-olate)-bis[(η5-pentamethylcyclopentadienyl)iridium(III)] Chloride

open access: yesMolbank
A metallacyclic maltol-tethered organometallic Ir(III) half-sandwich complex was synthesized as an analog of the ruthenium anticancer complexes (RAPTA/RAED) to evaluate its in vitro antiproliferative activity against various human cancer cell lines.
Ilya A. Shutkov   +5 more
doaj   +1 more source

Antibacterial Polyketides from the Marine Alga-Derived Endophitic Streptomyces sundarbansensis: A Study on Hydroxypyrone Tautomerism

open access: yesMarine Drugs, 2013
Polyketide 13 [=2-hydroxy-5-((6-hydroxy-4-oxo-4H-pyran-2-yl)methyl)-2- propylchroman-4-one] and three related known compounds 7, 9 and 11 were obtained and structurally characterized from Streptomyces sundarbansensis strain, an endophytic actinomycete ...
Ines Mancini   +3 more
doaj   +1 more source

Chiron approach and the [4 + 2] Diels-Alder cycloaddition of 2-pyrones for the synthesis of cis-(-)-aminoindan-2-ol

open access: yesResults in Chemistry, 2021
A cascade Diels-Alder reaction coupled with an oxidative aromatization reaction was developed and applied to a chiral 2-pyrone for the synthesis of the relevant chiral synthon/chiral auxiliary (-)-cis-aminoindan-2-ol.
Arturo de la Rosa-Barrales   +6 more
doaj   +1 more source

Contrasting ring-opening propensities in UV-excited α-pyrone and coumarin [PDF]

open access: yes, 2016
Ring-opening quantum yields following UV-photoexcitation of coumarin and α-pyrone are influenced by the dynamics through, rather than just the geometries of, conical intersections.
Ashfold, Michael N R   +8 more
core   +2 more sources

Synthesis and Performance of Deep-Red Phosphorescent Iridium Complexes with Pyrone as an Auxiliary Ligand

open access: yesMolecules
Two bis-cyclometalated heteroleptic iridium complexes incorporating 1-phenylisoquinoline (piq) as the main cyclometalating ligand and 3-hydroxy-2-methyl-4-pyrone (ma) or 2-ethyl-3-hydroxy-4H-pyran-4-one (ema) as the auxiliary ligand, namely Ir(piq)2(ma) (
Wen Jiang   +6 more
doaj   +1 more source

Benzo-pyrones for reducing and controlling lymphoedema of the limbs. [PDF]

open access: yes, 2009
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

Deodarone Isomers in Essential Oils and Tar Oils

open access: yesNatural Product Communications, 2015
Deodarone [2,2,6-trimethyl-6-(4-methylcyclohex-3-enyl)-tetrahydro-4-pyrone] is a sesquiterpene tetrahydro-γ-pyrone related to bisabolene and atlantone, first isolated from Cedrus deodora essential oil.
Anne Marie Nam   +5 more
doaj   +1 more source

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