Results 211 to 220 of about 15,472 (254)

Optimization of Swertiamarin and Isogentisin Extraction from <i>Gentiana lutea</i> L. Leaves by Response Surface Methodology. [PDF]

open access: yesPlants (Basel)
Šavikin K   +6 more
europepmc   +1 more source
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Allylamine Type Xanthone Antimycotics

Archiv der Pharmazie, 1998
A number of xanthone derivatives bearing the basic chain of naftifine and butenafine antimycotics in 1, 2, 3, and 4 nuclear positions are described. The in vitro antifungal activity against representative strains of molds and yeasts is reported. Only butenafine xanthone analogues show significant activity against Cryptococcus neoformans, in particular ...
I. SALMOIRAGHI   +3 more
openaire   +3 more sources

Xanthones from Hypericum chinense

Phytochemistry, 2006
Six xanthones, 1,3,7-trihydroxy-2-(2-hydroxy-3-methyl-3-butenyl)-xanthone (1), 1,7-dihydroxy-2,3-[2''-(1-hydroxy-1-methylethyl)-dihydrofurano]-xanthone (2), 1,3,7-trihydroxy-5-methoxyxanthone (3), 1,7-dihydroxy-5,6-dimethoxyxanthone (4), 4,5-dihydroxy-2,3-dimethoxyxanthone (5), 1,3-dihydroxy-2,4-dimethoxyxanthone (6) and 21 known xanthones were ...
Naonobu, Tanaka, Yoshihisa, Takaishi
openaire   +2 more sources

Xanthones of Comastoma pedunlulatum

China Journal of Chinese Materia Medica, 2010
The xanthones in the ethyl acetate extract of Comastoma pedunlulatum were investigated. The chromatographic and spectroscopic techniques were used to isolate and identify the constituents. Nine xanthones were isolated from the active parts of the ethyl acetate portion of the 70% ethanolic extract of C.
Yi, Yuan   +3 more
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Xanthones from Swertia punctata

Phytochemistry, 2002
Isolation of 1-O-primeverosyl-3,8-dihydroxy-5-methoxyxanthone and 1-O-gentiobiosyl-3,7-dimethoxy-8-hydroxyxanthone, along with five known xanthones, isobellidifolin, methylbellidifolin, isoswertianin, methylswertianin and norswertianin-1-O-beta-D-glucoside, from the roots of Swertia punctata is reported. In the aerial parts four xanthones, bellidifolin,
Menkovic, N   +7 more
openaire   +4 more sources

Microwave‐Assisted Xanthone Synthesis

Synthetic Communications, 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.
E. A. Evangelista   +4 more
openaire   +1 more source

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