Results 161 to 170 of about 5,399 (207)

Nupharanin, the first ellagitannin with 1,4-dehydrohexahydroxydiphenoyl-α-d-glucopyranose from Nuphar japonicum

Tetrahedron, 2020
Nupharanin (1), the first ellagitannin with dehydrohexahydroxydiphenoyl esters at the 1,4-positions of a-D-glucose, was isolated from the fresh rhizome of Nuphar japonicum.
Yosuke Matsuo, Yoshinori Saito, Takashi Tanaka   +2 more
exaly   +3 more sources

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Synthesis of ellagitannin natural products

Natural Product Reports, 2011
Covering: up to the beginning of 2011 A detailed overview of chemical synthesis approaches to ellagitannins is provided. This unique family of natural products, which belong to the hydrolysable tannin class of plant polyphenols, today features nearly 1000 members that have been fully characterised, from monomeric to oligomeric and complex ...
Laurent, Pouységu, Denis, Deffieux, Gaëlle, Malik, Anna, Natangelo, Stéphane, Quideau   +4 more
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Fungal biodegradation of pomegranate ellagitannins

Journal of Basic Microbiology, 2013
AbstractEllagitannins (ETs) are phytochemicals derived from secondary metabolism associated to defense system, with complex chemical structures, which have high participation during all stages of protection against microbial infection. In this study, we report the fungal biodegradation of a bioactive ET, named punicaline which was recovered and ...
Juan A, Ascacio-Valdés, José J, Buenrostro, Reynaldo, De la Cruz, Leonardo, Sepúlveda, Antonio F, Aguilera, Arely, Prado, Juan C, Contreras, Raúl, Rodríguez, Cristóbal N, Aguilar   +8 more
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Ellagitannin Chemistry. First Total Synthesis of the 2,3- and 4,6-Coupled Ellagitannin Pedunculagin

The Journal of Organic Chemistry, 1996
The biomimetic synthesis of pedunculagin (1) was accomplished through the sequential diastereoselective formation of two biphenyl C-C bonds. The synthesis strategy employed is predicated on extensive conformational modeling and involves initial oxidative coupling of the galloyl moieties at the O(2) and O(3) positions of an appropriately protected ...
Ken S., Feldman, Randall S., Smith
openaire   +2 more sources

Recent progress in ellagitannin chemistry

Phytochemistry, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
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Neuroprotective Effects of Ellagitannins: A Brief Review

Current Drug Targets, 2017
Neurodegenerative diseases are increasingly inevitable as the population gets older, with enormous socio-economic costs. The World Health Organization (WHO) has reported that by 2040, neurodegenerative diseases will overtake cancer to become the second leading cause of death, after cardiovascular disease.Herein, this review outlines the neuroprotective
Tejada, Silvia, Setzer, William, DAGLIA, MARIA, Nabavi, Seyed Fazel, Sureda, Antoni, Braidy, Nady, Gortzi, Olga, Nabavi, Seyed Mohammad   +7 more
openaire   +4 more sources

Multitargeted therapy of cancer by ellagitannins

Cancer Letters, 2008
Ellagitannins are bioactive polyphenols that have antioxidant and anti-inflammatory bioactivities. Pomegranate juice has the highest concentration of ellagitannins of any commonly consumed juice and contains the unique ellagitannin, punicalagin. Punicalagin is the largest molecular weight polyphenol known. Ellagitannins are not absorbed intact into the
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Cytotoxic ellagitannins from Reaumuria vermiculata

Fitoterapia, 2012
Three ellagitannins and one disulfated flavonol were isolated from the aerial parts of Reaumuria vermiculata L. Besides that, 16 known compounds were characterized as well. The structures of all compounds were elucidated on the basis of spectroscopic data including 1D and 2D NMR and ESI HR-FTMS. The in vivo antioxidant activity using the oxygen radical
Mahmoud A, Nawwar, Nahla A, Ayoub, Mohamed A, El-Rai, Fatma, Bassyouny, Eman S, Mostafa, Ahmed M, Al-Abd, Manuela, Harms, Kristian, Wende, Ulrike, Lindequist, Michael W, Linscheid   +9 more
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The bioavailability of raspberry anthocyanins and ellagitannins in rats

Molecular Nutrition & Food Research, 2007
AbstractThe fate of anthocyanins and ellagitannins in rats was monitored following ingestion of raspberry juice. After 1 h low nM concentrations of unmetabolised anthocyanins were present in plasma but these declined by 2 h and after 4 h they were no longer detectable.
Gina, Borges, Suri, Roowi, Jean-Max, Rouanet, Garry G, Duthie, Michael E J, Lean, Alan, Crozier   +5 more
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ChemInform Abstract: Ellagitannin Chemistry. The First Total Synthesis of a Dimeric Ellagitannin, Coriariin A.

ChemInform, 2000
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Ken S. Feldman, Michael D. Lawlor
openaire   +1 more source