Results 31 to 40 of about 4,599 (180)

Advances in Unconventional and Sustainable Synthetic Approaches to Benzopyran Scaffolds

open access: yesThe Chemical Record, EarlyView.
This review provides a comprehensive and critical analysis of low‐impact synthetic methodologies reported in the last 8 years (2018–2026) for the construction of benzopyran‐derived scaffolds, such as coumarins, flavones, chromones, chromenes, and chromanes. The benzopyran scaffold is a versatile family of heterocycles found in a wide range of bioactive
Nathalia B. Sá   +4 more
wiley   +1 more source

Molecular Docking and Molecular Dynamic Investigations of Xanthone-Chalcone Derivatives against Epidermal Growth Factor Receptor for Preliminary Discovery of Novel Anticancer Agent

open access: yesIndonesian Journal of Chemistry
Epidermal growth factor receptor (EGFR) is found to be overexpressed in cancer cells as it controls angiogenesis, cell signaling, and proliferation mechanisms.
Yehezkiel Steven Kurniawan   +6 more
doaj   +1 more source

Cytotoxicity and Toxicity Evaluation of Xanthone Crude Extract on Hypoxic Human Hepatocellular Carcinoma and Zebrafish (Danio rerio) Embryos

open access: yesToxics, 2018
Xanthone is an organic compound mostly found in mangosteen pericarp and widely known for its anti-proliferating effect on cancer cells. In this study, we evaluated the effects of xanthone crude extract (XCE) and α-mangostin (α-MG) on normoxic
Shazrul Fazry   +13 more
doaj   +1 more source

Synergistic enhancement SPF from annatto seed oil and alkaline extracts in association with organic UV filters

open access: yesInternational Journal of Cosmetic Science, EarlyView.
An SPF formulation incorporating Bixa orellana seed extracts and oils showed enhanced UV protection, highlighting the potential of natural bioactive compounds as effective boosters in photoprotective cosmetic products. Abstract Objective This study investigated the antioxidant activity of oil and alkaline aqueous extracts obtained from Bixa orellana ...
Ister Cordeiro Mariotini   +8 more
wiley   +1 more source

Molecular Cloning and Characterization of a Xanthone Prenyltransferase from Hypericum calycinum Cell Cultures

open access: yesMolecules, 2015
In plants, prenylation of metabolites is widely distributed to generate compounds with efficient defense potential and distinct pharmacological activities profitable to human health. Prenylated compounds are formed by members of the prenyltransferase (PT)
Tobias Fiesel   +8 more
doaj   +1 more source

Advances in organic UV filters for sunscreens over the past decade

open access: yesPhotochemistry and Photobiology, EarlyView.
Highlighted organic UV filter frameworks that have been described for sunscreens over the past decade divided into three groups: derivatives of or inspired by approved organic UV filters, natural product‐based compounds, and miscellaneous. Abstract Ultraviolet (UV) radiation is a major environmental factor in photoaging, erythema, and skin cancer ...
Gabriela Zanella Marcon   +4 more
wiley   +1 more source

ANTIBACTERIAL ACTIVITY OF XANTHONE FROM ETHYL ACETATE EXTRACT OF THE STEAM BARK OF Garcinia picrorrhiza Miq

open access: yesAlchemy, 2017
A compound was isolated from the ethyl acetate extract of stem bark Garcinia picrorrhiza. The extraction was conducted by maseration. Separation and purification were done by chromatography method.
Muharni Muharni   +2 more
doaj   +1 more source

The Amazonian “Bacuri” Seeds Butter (Platonia insignis Mart.) Improves Ex Vivo Aortic Vascular Dysfunction and In Vivo Oxidative Stress in L‐NAME‐Treated Rats

open access: yesPhytochemicals in Food and Medicine, Volume 1, Issue 4, December 2026.
Industrialised bacuri seed butter (Platonia insignis Mart.) exhibited antioxidant and vasorelaxant effects, improving vascular reactivity and oxidative stress biomarkers in hypertensive rats. These findings highlight MIB as a promising natural product for mitigating hypertension‐associated vascular dysfunction and oxidative stress.
Maisa Gomes da Silva   +16 more
wiley   +1 more source

SYNTHESIS AND THERMAL REARRANGEMENT OF OXYGEN HETEROCYCLIC SPIRANS [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1993
Thermal rearrangement of spirans (14) and (31) yields the xanthones (16,34) and diphenylrnethane (15, 32), respectively. The structure for xanthone (16), isolated from thermolysis, has been established by reduction to xanthene (20) followed by ...
doaj  

Exploring green solvent systems and enhanced solubility of xanthone in triglyceride-based tricaprin-tricaprylin mixtures with thermodynamic insights

open access: yesBMC Chemistry
This study explores the use of green solvent systems by investigating the solubility and thermodynamic properties of xanthone (1) in triglyceride-based tricaprin (2) and tricaprylin (3) mixtures, aiming to replace traditional organic solvents.
Hua Liu   +4 more
doaj   +1 more source

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