Results 71 to 80 of about 16,938 (213)
Crystal structure of dibromomethoxyseselin (DBMS), a photobiologically active pyranocoumarin
Acta Crystallographica Section E: Crystallographic Communications, 2017 The title compound, C15H14Br2O4 [systematic name: rac-(9S,10R)-3,9-dibromo-10-methoxy-8,8-dimethyl-9,10-dihydropyrano[2,3-h]chromen-2(8H)-one], is a pyranocoumarin derivative formed by the bromination of seselin, which is a naturally occurring angular ...
A. K. Bauri +2 more
doaj +1 more source
Spiropyran modified PDMS micro-fluidic chip device for photonically controlled sensor array detection of metal ions [PDF]
, 2009 Micro‐fluidic chips are particularly attractive in biological and life sciences for analytical purposes because they provide a convenient small platform for rapid analysis and detection [1].
Benito-Lopez, Fernando +5 more
core
A KATP channel opener inhibited myocardial reperfusion action potential shortening and arrhythmias [PDF]
, 2001 Low concentrations of certain K<sub>ATP</sub> channel openers have been reported to exert a moderate inhibitory effect on arrhythmias during post-ischaemic early myocardial reperfusion, but the accompanying effects on the time course of ...
MacKenzie, I. +2 more
core +1 more source
Microbial Contributions to Primate Reproduction
Evolutionary Anthropology: Issues, News, and Reviews, Volume 35, Issue 1, March 2026.ABSTRACT Reproduction is a complex process, and microbes play a far greater role than previously imagined. This review explores the ways that microbiomes influence the rich tapestry of reproductive processes and outcomes within the primate lineage, including pre‐copulatory and post‐copulatory mechanisms.
Silvia Carboni +2 more
wiley +1 more source
An Efficient and Rapid Synthetic Route to Biologically Interesting Pyranochalcone Natural Products
Molecules, 2007 An efficient and concise total synthesis of naturally occurring pyranochalcones was achieved from readily available 2,4-dihydroxyacetophenone and 2,4-dihydroxy-6- methoxyacetophenone. The key steps in the synthetic strategy were ethylenediamine diacetate-
Likai Xia, Xue Wang, Yong Rok Lee
doaj +1 more source
Crystal structure of 4-azido-methyl-6-isopropyl-2H-chromen-2-one [PDF]
, 2015 In the title mol-ecule, C13H13N3O2, the benzo-pyran ring system is essentially planar, with a maximum deviation of 0.017 (1) Å. In the crystal, weak C-H⋯O hydrogen bonds link mol-ecules into ladders along [010].
Krishnamurthy, M.S. +3 more
core +1 more source
Food Frontiers, Volume 7, Issue 2, March 2026.ABSTRACT Medicago sativa L. (alfalfa) harbors a remarkably diverse reservoir of bioactive secondary metabolites. Flavonoids, isoflavones, and triterpenoid saponins dominate its bioactivity landscape, driving potent antioxidant, anti‐inflammatory, antimicrobial, estrogenic, hypolipidemic, and cytotoxic actions through redox modulation, membrane ...
Parham Joolaei Ahranjani +3 more
wiley +1 more source
Photorelease of amino acids from novel thioxobenzo[f]benzopyran ester conjugates [PDF]
, 2011 Aiming at the enhancement of the performance of (9-methoxy-3-oxo-3H-benzo[f]benzopyran-1-yl) methyl ester as photocleavable protecting group for the carboxylic acid function at long-wavelengths, 9-methoxy-3-thioxo-3H-benzo[f]benzopyran-L-valine and L ...
Costa, Susana P. G. +3 more
core +1 more source
New Zealand Journal of Botany, Volume 64, Issue 1, March 2026.Central Asia harbors a rich yet understudied assemblage of wood‐inhabiting Hymenochaetoid fungi. This review delivers the first comprehensive synthesis of 43 poroid species representing 18 genera documented across montane forests, steppes, and xeric habitats.
Yusufjon Gafforov +16 more
wiley +1 more source
Litter Quality of Populus Species as Affected by Free-Air CO2 [PDF]
, 2009 The effect of elevated CO2 and nitrogen fertilization on the molecular chemistry of litter of three Populus species and associated soil organic matter (SOM) was investigated by pyrolysis-gas chromatography/mass spectrometry.
Buurman, P., Hoosbeek, M.R., Vermue, E.
core +4 more sources