Results 71 to 80 of about 12,444 (248)

Synthesis of 2,3,6,8-Tetrasubstituted Chromone Scaffolds [PDF]

open access: yesThe Journal of Organic Chemistry, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Kristian, Dahlén   +3 more
openaire   +2 more sources

The State of Knowledge of the Primary and Secondary Metabolites of the Iris Genus

open access: yesChemistry &Biodiversity, Volume 23, Issue 1, January 2026.
The genus Iris L. (Iridaceae) comprises over 320 species, primarily found in the northern hemisphere. Iris species are important in horticulture, folklore and medicine, and contain a variety of primary and secondary metabolites with significant biological activity.
Olha Mykhailenko   +3 more
wiley   +1 more source

Remarkable Phytochemical Characteristics of Chi-Nan Agarwood Induced from New-Found Chi-Nan Germplasm of Aquilaria sinensis Compared with Ordinary Agarwood

open access: yesInternational Journal of Analytical Chemistry, 2021
Wild Chi-Nan agarwood is regarded as the highest quality agarwood from Aquilaria spp. However, the comprehensive research on chemical composition of wild Chi-Nan agarwood is limited. An integrated strategy using SHS-GC-MS and UPLC-Q/Tof-MS was applied to
Meng Yu   +7 more
doaj   +1 more source

Diaportheone A Analogues Instigate a Neuroprotective Effect by Protecting Neuroblastoma SH-SY5Y Cells from Oxidative Stress

open access: yesBiology, 2021
Alzheimer’s disease (AD) remains an incurable neurodegenerative illness. Oxidative stress resulting in the formation of reactive oxygen species (ROS) and the abnormal deposition of amyloid-beta (Aβ) are the major pathological hallmarks associated with AD.
Mario A. Tan   +2 more
doaj   +1 more source

Synthesis of fluorinated oxygen- and sulfur-containing heteroaromatics [PDF]

open access: yes, 2017
Milk protein concentrate (79% protein) reconstituted at 13.5% (w/v) protein was heated (90 °C, 25 min, pH 7.2) with or without added calcium chloride.
Jones, David J.   +3 more
core   +1 more source

Overview of sesquiterpenes and chromones of agarwood originating from four main species of the genus Aquilaria

open access: yesRSC Advances, 2019
The main chemical constituents of agarwood are sesquiterpenes and chromones, which can be divided into different categories depending on their molecular skeletons. Agarwoods are obtained from different plant species: Aquilaria sinensis, A. malaccensis, A.
Mei Gao   +10 more
semanticscholar   +1 more source

Natural Products Targeting the EGFR/HER2 Axis in Tumorigenesis: Interpretation of Molecular Mechanisms and Recent Insights Into Synergistic Strategies for Cancer Therapy

open access: yesFood Frontiers, Volume 7, Issue 1, January 2026.
Schematic overview illustrating the anticancer mechanisms of selected natural products (resveratrol, quercetin, berberine) targeting EGFR and HER2 signaling pathways in tumor cells. These compounds inhibit receptor activation and downstream oncogenic cascades, including PI3K/Akt/mTOR, MAPK/ERK, and STAT3 pathways.
Iman Ramli   +8 more
wiley   +1 more source

General method for the synthesis of enaminones via photocatalysis

open access: yesBeilstein Journal of Organic Chemistry
Enaminones are key intermediates in the synthesis of several derivatives with important applications in medicinal chemistry. Furthermore, many marketed drugs feature the enaminone structural moiety.
Paula Pérez-Ramos   +2 more
doaj   +1 more source

How an online survey on the treatment of allergic rhinitis and its impact on asthma (ARIA) detected specialty-specific knowledge-gaps [PDF]

open access: yes, 2015
Background To enhance the dissemination of the ARIA document (Allergic rhinitis (AR) and its impact on asthma) in Mexico, a Working Group composed of 35 specialists of 8 professional medical societies developed a transculturized ARIA México 2014 ...
Désirée ES Larenas Linnemann   +2 more
core   +1 more source

Direct Enantio- and Diastereoselective Vinylogous Addition of Butenolides to Chromones Catalyzed by Zn-ProPhenol.

open access: yesJournal of the American Chemical Society, 2019
We report the first enantio- and diastereoselective 1,4-addition of butenolides to chromones. Both α,β- and β,γ-butenolide nucleophiles are compatible with the Zn-ProPhenol catalyst, and preactivation as the siloxyfurans is not required.
B. Trost   +4 more
semanticscholar   +1 more source

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