Ent-Kaurenoic Acid: A Diterpene as Frond Exudate on Ferns of the Genus Notholaena
Open Access
- 1 February 1983
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung C
- Vol. 38 (1-2) , 146-147
- https://doi.org/10.1515/znc-1983-1-225
Abstract
The frond exudates of the two gymnogrammoid ferns, Notholaena peninsular is and N. pallens, consist mainly of a diterpene, accompanied by small amounts of flavonoid aglycones. The diterpenes from both sources are shown to be identical. Their structure has been established by spectroscopic methods as (-)-kaur-16-ene-19-oic acid. This result is confirmed by direct comparison with an authentic sample.Keywords
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