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Your search keyword '"Kurt Hostettmann"' showing total 9 results
Start Over Author "Kurt Hostettmann" Publication Year Range More than 50 years ago
9 results on '"Kurt Hostettmann"'

3. Contribution à la phytochimie du genreGentiana, VI. Etude des xanthones dans les feuilles deGentiana bavaricaL

Author

Rafael Tabacchi, Kurt Hostettmann, and André Jacot‐Guillarmod

Subjects
Inorganic Chemistry, Column chromatography, biology, Chemistry, Stereochemistry, Organic Chemistry, Drug Discovery, Physical and Theoretical Chemistry, biology.organism_classification, Biochemistry, Catalysis, Gentiana
Abstract

Ten tetraoxygenated xanthones (1-hydroxy-3, 7, 8-trimethoxyxanthone I; 1, 7-dihydroxy-3, 8-dimethoxyxanthone II; 1, 7, 8-trihydroxy-3-methoxyxanthone III; 1, 3, 7, 8-tetrahydroxyxanthone IV; 3, 7, 8-trimethoxyxanthone-1-O-primeveroside V; 7-hydroxy-3, 8-dimethoxyxanthone-1-O-primeveroside VI; 1, 8-dihydroxy-3-methoxyxanthone-7-O-acetylrutinoside VII; 7, 8-dihydroxy-3-methoxyxanthone-1-O-primeveroside VIII; 3, 7, 8-trihydroxyxanthone-1-O-primeveroside IX; 3, 7, 8-trihydroxyxanthone-1-O-glucoside X) have been isolated from leaves of Gentiana bavaricaL. by means of column chromatography on polyamid. Among these xanthones, VI, VII, VIII and IX were not encountered before in nature.

Published
1974
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5. Contribution à la phytochimie du genreGentiana. V. Identification d'un nouveau O-glucoside de C-glucoside flavonique dans les feuilles deGentiana nivalisL

Author

Kurt Hostettmann and André Jacot‐Guillarmod

Subjects
Inorganic Chemistry, Column chromatography, biology, Stereochemistry, Chemistry, Organic Chemistry, Drug Discovery, Physical and Theoretical Chemistry, biology.organism_classification, Biochemistry, Catalysis, Gentiana
Abstract

A new flavonic heteroside, isoorientin-3′-O-glucoside, has been isolated from leaves of Gentiana nivalisL. by means of column chromatography on polyamide. The determination of the structure is described.

Published
1974
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