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Planta Med 2000; 66(6): 585-587
DOI: 10.1055/s-2000-8608
DOI: 10.1055/s-2000-8608
Letter
Georg Thieme Verlag Stuttgart · New York
The Heliangolide Dihydrohirsutolide from Arctotis fastuosa and Dichloromethyldihydrohirsutolide
Further Information
Publication History
Publication Date:
31 December 2000 (online)
Abstract
Three of ten sesquiterpene lactones isolated from the herb of Arctotis fastuosa (Asteraceae) belong to the heliangolide series. The first was identified as hirsutolide, the second is new and named dihydrohirsutolide, and the third, dichloromethyldihydrohirsutolide, is an artifact. The known degraded carotenoid loliolide was also isolated. Structures were established by spectroscopic methods including IR, 1D-/2D-1H-NMR, 13C-NMR, GHSQC, GHMBC, HREIMS and CD.
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Prof. Dr. A. W. Frahm
Lehrstuhl für Pharmazeutische Chemie Pharmazeutisches Institut
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