Results 101 to 110 of about 53,724 (334)

Isoliquiritigenin, a Strong nod Gene- and Glyceollin Resistance- Inducing Flavonoid from Soybean Root Exudate [PDF]

, 1992
Isoflavonoid signal molecules from soybean (Glycine max (L.) Merr.) seed and root exudate induce the transcription of nodulation (nod) genes in Bradyrhizobium japonicum. In this study, a new compound with symbiotic activity was isolated from soybean root
Brandt, Sebastian, Kape, Rüdiger, Parniske, Martin, Werner, Dietrich   +3 more
core  

Exploring quinolinone–chalcones: Synthesis, antioxidant potential and industrial applications in biofuels

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Biofuels undergo oxidative degradation, which reduces their storage stability and efficiency, hindering their large‐scale adoption and integration into the global energy matrix. To address this issue, we synthesized and characterized four novel quinolinone–chalcone derivatives (substituted with Br, Cl, OCH3 and OCH2CH3) as potential ...
Vitor S. Duarte, Renata Layse G. de Paula, Leonardo R. Almeida, Giulio D. C. D’Oliveira, Caridad N. Pérez, Jean M. F. Custódio, Valter H. Carvalho‐Silva, Andrea Lombardi, Hamilton B. Napolitano   +8 more
wiley   +1 more source

Exploring the Discrepancies in the Biological Activities of Extracts From Guadua angustifolia Var. Bicolor Londoño Collected in Two Different Sites

Chemistry &Biodiversity, EarlyView.
ABSTRACT Guadua angustifolia var. bicolor Lodoño is a Colombian bamboo species that has shown promising medicinal properties. This study aims to investigate the differences in the chemical composition and biological activity of extracts from two different populations of G. angustifolia var. bicolor, collected in Bauru and Tatuí, Brazil.
João Kazlauckas, Maria Tereza Grombone Guaratini, Paulo Roberto H. Moreno   +2 more
wiley   +1 more source

Green synthesis of novel chalcone and coumarin derivatives via Suzuki coupling reaction [PDF]

, 2012
Chalcones and coumarins are important naturally occurring plant constituents and display a wide range of pharmacological and biological activities.
Corrêa, Arlene G., Paixão, Márcio Weber, Vieira, Lucas C.C.   +2 more
core   +1 more source

Eugenia brasiliensis: Analysis of the Chemical Profile and Evaluation of Cytotoxic Potential

Chemistry &Biodiversity, EarlyView.
Leaves of Eugenia brasiliensis were dried, crushed and macerated with polarity increment. The antiporliferative and anti‐migratory potential and the cell cycle were evaluated. 28 compounds were tentatively identified by mass sceptrometry. ABSTRACT This work evaluated the antiproliferative potential of Eugenia brasiliensis leaf extracts against the HeLa
Giovana G. F. V. de Oliveira, Milena F. Longue, Letícia M. R. Pescinelli, Thiago S. Charret, Thalya S. R. Nogueira, Mariana T. M. Pereira, Ivo J. C. Vieira, Lucas S. Abreu, Vinicius D. B. Pascoal, Aislan C. R. F. Pascoal   +9 more
wiley   +1 more source

Advances in Mechanochemical Methods for One‐Pot Multistep Organic Synthesis

Chemistry – A European Journal, EarlyView.
This review highlights recent advances in mechanochemical methods for multistep organic synthesis, focusing on sequential one‐pot approaches performed by grinding or ball milling. The presented transformations are discussed in terms of efficiency, applicability, and sustainability, assessing both the challenges and potential of solvent‐free one‐pot ...
Nina Biedermann, Michael Schnürch
wiley   +1 more source

Intracellular and Extracellular Efficacy of Homoisoflavone Derivatives Against Mycobacterium Tuberculosis: Progress Toward Novel Antitubercular Agents

ChemMedChem, EarlyView.
A series of 42 homoisoflavones were synthesized and evaluated against Mycobacterium tuberculosis (Mtb). Three derivatives showed potent inhibition of Mtb strains. Evaluation in infected macrophages revealed promising intracellular activity, where one derivative featuring a nitrofuranyl and piperidine group emerges as the most promising.
Sanderson D. Calixto, Juliane S. Falcão, Stella S. Antunes, Marlon H. Araujo, Alexandre L. B. Cunha, David R. Martins, Sarah M. R. Nascimento, Thatiana L. B. V. Simão, Elena B. Lasunskaia, Nelilma C. Romeiro, Paulo R. R. Costa, Michelle F. Muzitano, Guilherme S. Caleffi   +12 more
wiley   +1 more source

Two new prenylated chalcones from the leaves of Artocarpus lowii King [PDF]

, 2016
Two minor prenylated chalcones were isolated for the first time from the leaves of Artocarpus lowii King. These prenylated chalcones were identified as 2- hydroxyparatocarpin C (1) and 2ʹ,3,4ʹ,4-tetrahydroxy-3ʹ-prenylchalcone (2). The structures of these
Jamil, S., Jantan, I., Sirat, H. M.
core   +1 more source

Challenges and Opportunities in the Use of Iron Photosensitizers for Dye‐Sensitized Solar Cells and Photoelectrosynthetic Cells Applications

EcoEnergy, EarlyView.
This review gathers examples of iron‐based photosensitizers that have been successfully immobilized on metal oxide surfaces for dye‐sensitized solar cells and potential dye‐sensitized photoelectrosynthesic cells applications. A critical comparison of Fe‐based photosensitizers is made based on their photophysical properties, electrochemistry, and ...
Lakshmi Narayan Satheesh, Katerina Achilleos, Abdullah M. Abudayyeh, Ludovic Troian‐Gautier   +3 more
wiley   +1 more source

Antimicrobial, Antioxidant, and Anticancer Activities of Some Novel Isoxazole Ring Containing Chalcone and Dihydropyrazole Derivatives

Molecules, 2020
Our previous work identified isoxazole-based chalcones and their dihydropyrazole derivatives as two important five-membered heterocycles having antitubercular activity.
Afzal Shaik, Richie R. Bhandare, Kishor Palleapati, Srinath Nissankararao, Venkata Kancharlapalli, Shahanaaz Shaik   +5 more
doaj   +1 more source