Eckhard Wollenweber - Academia.edu (original) (raw)
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Papers by Eckhard Wollenweber
岐阜藥科大學紀要 the Annual Proceedings of Gifu College of Pharmacy, Jun 30, 1991
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Natural Product Letters, 1993
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Tetrahedron Lett, 1972
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Tetrahedron Lett, 1970
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Phytochemistry, 1972
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Phytochemistry, 1974
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Biochimie, 1971
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Pharmaceutical Biology, 2008
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Zeitschrift für Naturforschung. C, Journal of biosciences
The resinous material accumulated on aerial parts of Madia species is shown to consist mainly of ... more The resinous material accumulated on aerial parts of Madia species is shown to consist mainly of diterpenes, containing a series of flavonoid aglycones. A6- and/or 8-O-substitution is characteristic for many of these flavonoids. Three known rare diterpenes were found and the structure elucidation of a diterpene with a new carbon skeleton, named madiaol, is reported.
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Journal of Agricultural and Food Chemistry, 2004
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Zeitschrift Fur Naturforschung Section C Biosciences, 1984
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岐阜藥科大學紀要, Jun 30, 1989
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Plant Systematics and Evolution, 1990
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Zeitschrift Fur Naturforschung C, 2002
Externally accumulated flavonoid aglycones have been found for the first time in Nonea species. T... more Externally accumulated flavonoid aglycones have been found for the first time in Nonea species. They exhibit only flavones, one of them being the rare tricetin-4'-methyl ether. Within the subfamily Boraginoideae, exudate flavonoids appear to be a rare character.
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Zeitschrift Fur Naturforschung C, 2008
The lipophilic exudates deposited on aerial parts of four species of Cassinia and twelve species ... more The lipophilic exudates deposited on aerial parts of four species of Cassinia and twelve species of Ozothamnus (Asteraceae, Gnaphalieae) have been analyzed for the presence of flavonoid aglycones and some other phenolics. A total of 55 flavonoids were identified, including several rare flavonols. Flavonols are prevailing over flavones, and 8-O-substitution is dominant in both groups. Ozothamnus rosmarinifolius is exceptional in producing several coumarins. Four dihydrobenzofurans have also been identified from this species. Cluster analysis and principal coordinate analysis of the flavonoid data provide support for combining species of Cassinia and Ozothamnus into a single genus.
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岐阜藥科大學紀要, Jun 30, 1990
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Chromatographia, 2004
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Zeitschrift Fur Naturforschung Section C Biosciences, 1984
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Zeitschrift Fur Naturforschung C a Journal of Biosciences, 2005
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岐阜藥科大學紀要 the Annual Proceedings of Gifu College of Pharmacy, Jun 30, 1991
Bookmarks Related papers MentionsView impact
Natural Product Letters, 1993
Bookmarks Related papers MentionsView impact
Tetrahedron Lett, 1972
Bookmarks Related papers MentionsView impact
Tetrahedron Lett, 1970
Bookmarks Related papers MentionsView impact
Phytochemistry, 1972
Bookmarks Related papers MentionsView impact
Phytochemistry, 1974
Bookmarks Related papers MentionsView impact
Biochimie, 1971
Bookmarks Related papers MentionsView impact
Pharmaceutical Biology, 2008
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Zeitschrift für Naturforschung. C, Journal of biosciences
The resinous material accumulated on aerial parts of Madia species is shown to consist mainly of ... more The resinous material accumulated on aerial parts of Madia species is shown to consist mainly of diterpenes, containing a series of flavonoid aglycones. A6- and/or 8-O-substitution is characteristic for many of these flavonoids. Three known rare diterpenes were found and the structure elucidation of a diterpene with a new carbon skeleton, named madiaol, is reported.
Bookmarks Related papers MentionsView impact
Journal of Agricultural and Food Chemistry, 2004
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Zeitschrift Fur Naturforschung Section C Biosciences, 1984
Bookmarks Related papers MentionsView impact
岐阜藥科大學紀要, Jun 30, 1989
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Plant Systematics and Evolution, 1990
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Zeitschrift Fur Naturforschung C, 2002
Externally accumulated flavonoid aglycones have been found for the first time in Nonea species. T... more Externally accumulated flavonoid aglycones have been found for the first time in Nonea species. They exhibit only flavones, one of them being the rare tricetin-4'-methyl ether. Within the subfamily Boraginoideae, exudate flavonoids appear to be a rare character.
Bookmarks Related papers MentionsView impact
Zeitschrift Fur Naturforschung C, 2008
The lipophilic exudates deposited on aerial parts of four species of Cassinia and twelve species ... more The lipophilic exudates deposited on aerial parts of four species of Cassinia and twelve species of Ozothamnus (Asteraceae, Gnaphalieae) have been analyzed for the presence of flavonoid aglycones and some other phenolics. A total of 55 flavonoids were identified, including several rare flavonols. Flavonols are prevailing over flavones, and 8-O-substitution is dominant in both groups. Ozothamnus rosmarinifolius is exceptional in producing several coumarins. Four dihydrobenzofurans have also been identified from this species. Cluster analysis and principal coordinate analysis of the flavonoid data provide support for combining species of Cassinia and Ozothamnus into a single genus.
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岐阜藥科大學紀要, Jun 30, 1990
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Chromatographia, 2004
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Zeitschrift Fur Naturforschung Section C Biosciences, 1984
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Zeitschrift Fur Naturforschung C a Journal of Biosciences, 2005
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