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Planta Med 1990; 56(1): 111-114
DOI: 10.1055/s-2006-960899
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© Georg Thieme Verlag Stuttgart · New York

Weitere Helenanolide aus den Blüten von Arnica chamissonis subsp. foliosa 1,2,3

Further Helenanolides from the Flowers of Arnica chamissonis subsp. foliosa1,2,3 Günter Willuhn, Joachim Kresken, Walter Leven
  • Institut für Pharmazeutische Biologie der Heinrich-Heine-Universität Düsseldorf, Universitätsstr.1, D-4000 Düsseldorf, Federal Republic of Germany
1 Sesquiterpenlactone aus Arnica chamissonis; Teil V. Tell IV, s. Ref. (3)2 Kurzvorträge, gehalten auf der 29. und 30. Vortragstagung der Gesellschaft für Arzneipflanzenforschung in Marburg, 9.-13.6.1981 bzw. in Graz 12.-17.7.1982, Planta Med. (1981) 42,107 bzw. (1982) 45, 1313 Teilergebnisse der Dissertationen von J. Kresken, Universität Düsseldorf 1984 und W. Leven, Universität Düsseldorf 1988
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Publication History

1989

Publication Date:
05 January 2007 (online)

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Abstract

A phytochemical study of the flowers of Arnica chamissonis Less. subsp. foliosa (Nutt.) Maguire (Asteraceae) has resulted in the identification of a further 23 helenanolides. Six of them, 2α-hydroxy-6-O-angelicoyl-2,3-dihydrohelenalin (3b), 2α-hydroxy-6-O-senecioyl-2, 3-dihydrohelenalin (3c), 2α-hydroxy-6-O-tigloyl-2,3,11α,13-tetrahydrohelenalin (4a), 2α-hydroxy-6-O-isovaleryl-2, 3,11α,13-tetrahydrohelenalin (4d), 6-O-acetylchamissonolide (5c), and 4,6-di-O-acetylchamissonolide (5d), were isolated for the first time as natural compounds. Their structures were established by GLC-MS studies and IR, 1H- and 13C-NMR spectroscopy

Key words

Arnica chamissonis - Asteraceae - pseudoguaianolides - sesquiterpene lactones