Results 61 to 70 of about 44,706 (210)

Identification, characterization and quantification of xanthones from Fridericia formosa leaves extract with antiviral activity

Scientific Reports
Fridericia formosa (Bureau) L.G. Lohmann (Bignonaceae) is a neotropical liana species found in the Cerrado biome in Brazil. It has been of great interest to the scientific community due to its potential as a source of new antivirals, including xanthones ...
Luana Beatriz Araújo Vaz, Tatiane Roquete Amparo, Adriana Cotta Cardoso Reis, Breno de Mello Silva, Cíntia Lopes de Brito Magalhães, Markus Kohlhoff, Geraldo Célio Brandão   +6 more
doaj   +1 more source

In vitro and in vivo anti-colon cancer effects of Garcinia mangostana xanthones extract

BMC Complementary and Alternative Medicine, 2012
Background Xanthones are a group of oxygen-containing heterocyclic compounds with remarkable pharmacological effects such as anti-cancer, antioxidant, anti-inflammatory, and antimicrobial activities. Methods A xanthones extract (81% α-mangostin and 16% γ-
Aisha Abdalrahim F A, Abu-Salah Khalid M, Ismail Zhari, Majid AminMalikShahAbdul   +3 more
doaj   +1 more source

Phytochemicals and Biological Activities of Garcinia morella (Gaertn.) Desr.: A Review

Molecules, 2020
Garcinia morella (Gaertn.) Desr. is an evergreen tree that yields edible fruits, oil, and resin. It is a source of “gamboge”, a gum/resin that has a wide range of uses. The fruits, leaves, and seeds of this tree are rich in bioactive compounds, including
Hosakatte Niranjana Murthy, Dayanand Dalawai, Yaser Hassan Dewir, Abdullah Ibrahim   +3 more
doaj   +1 more source

Estudo da reatividade química e atividade biológica de biflavonóides isolados da Rheedia gardneriana [PDF]

, 2000
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.Extração, purificação e identificação de princípios ativos a partir da Rheedia gardneriana (Guttiferae), planta utilizada na medicina popular ...
Verdi, Luiz Gonzaga
core  

Cytotoxic and Antiplasmodial Xanthones from Pentadesma butyracea

, 2009
Four new xanthones, butyraxanthones A-D (1-4), were isolated from the stem bark of Pentadesma butyracea, together with six known xanthones (5-10) and a triterpenoid (lupeol). The structures of 1-4 were established by spectroscopic methods. Compounds 1-10
D. Guilet, A. Valentin, M.G. Dijoux-Franca, N. Fabre, S. Chevalley, S. Ngouela, B.Ndjakou Lenta, C. Bayet, F. Zelefack, E. Tsamo   +9 more
core   +1 more source

Ceramidonines, Fused 3,9‐Diazaperylenes, and Related Compounds: From Synthesis to Physicochemical Properties and Evaluation as Inhibitors of PIM Kinases

ChemistryEurope, Volume 4, Issue 5, May 2026.
Ceramidonines, benzo‐fused 3,9‐diazaperylenes and related compounds were synthesized, and their properties studied. Substituted ceramidonines were synthesized by cyclization of 1‐(arylamino)anthraquinones under acidic conditions. These key intermediates were prepared either by copper‐promoted N‐arylation of 1‐aminoanthraquinone with iodoarenes or, more
Ahlem N. Khelf‐Maghraoui, Nicolas Mast, William Erb, Lionel Nauton, Pascale Moreau, Nicolas Richy, Guillaume Calvez, Yann Molard, Olivier Mongin, Jean‐Pierre Hurvois, Thierry Roisnel, Charline Piroud, Thomas Robert, Stéphane Bach, Ghenia Bentabed‐Ababsa, Florence Mongin   +15 more
wiley   +1 more source

Antibacterial Xanthones from the Leaves of Garcinia nigrolineata

, 2016
Ten new 1,3,5-trioxygenated xanthones, nigrolineaxanthones J−S (1−10), one new quinone derivative, nigrolineaquinone A (11), and one new isoflavone-like compound, nigrolineaisoflavone A (12), were isolated from the leaves of Garcinia nigrolineata along ...
Souwalak Phongpaichit (446803), Prakart Sawangchote (2728162), Walter C. Taylor (2728168), Dusadee Sukavisit (2728165), Vatcharin Rukachaisirikul (446804), Mayuree Kamkaew (2728171)   +5 more
core   +1 more source

Garcinone C Suppresses Cancer Stem Cells and Induces Apoptosis in Triple‐Negative Breast Cancer Through Canonical Wnt Signaling

Food Frontiers, Volume 7, Issue 3, May 2026.
Garcinone C (Gar. C), a xanthone derived from mangosteen (Garcinia mangostana), suppresses triple‐negative breast cancer growth and stemness by inducing mitochondrial‐mediated apoptosis and inhibiting the Wnt/β‐catenin pathway, highlighting its potential as a natural compound for the prevention and treatment TNBC.
Danhong Zheng, Jiazi Chen, Yong Wang, Da Ma, Jing Chen   +4 more
wiley   +1 more source

Antitumor Activity of Some Prenylated Xanthones [PDF]

Pharmaceuticals, 2009
Pyranoxanthones 6-8 were obtained by dehydrogenation of the respective dihydropyranoxanthones 3-5 with DDQ in dry dioxane. Two prenylated xanthones 10,11 were obtained from the reaction of 1-hydroxyxanthone (9) with prenyl bromide in alkaline medium, or by condensation of xanthone 9 with isoprene in the presence of orthophosphoric acid.
Raquel A.P. Castanheiro, Artur M.S. Silva, Naïr A.N. Campos, Maria S.J. Nascimento, Madalena M.M. Pinto   +4 more
openaire   +4 more sources

Obtenção de compostos com ação biológica através da síntese e modificação estrutural de produtos naturais: estudo de correlação estrutura-atividade [PDF]

, 2004
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.
Pinheiro, Tânia Rosely
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