Sesquiterpenes of thalloid liverworts of the genera Conocephalum,Lunularia, Metzgeria and Riccardia |
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| Authors: | Niels H Andersen Yoshimoto Ohta C-B Liu C Michael Kramer Ken Allison S Huneck |
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| Institution: | 1. Department of Chemistry, University of Washington, Seattle, WA 98195, U.S.A.;2. Institute of Plant Biochemistry, Research Centre for Molecular Biology and Medicine of the Academy of Sciences of the GDR, DDR-401, Halle/Saale, Weinberg, German Democratic Republic |
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| Abstract: | Thalloid liverworts of orders Metzgeriales and Marchantiales elaborate essential oils distinguishable from those of the Jungermanniales by the absence of β-barbatene and anastreptene. Riccardia sinuata elaborates a novel tricyclic exomethylene sesquiterpene of as yet undetermined structure. Conocephalum conicum elaborates cadinene-type sesquiterpenes. β-Cadinene from the latter species is clearly enantiomeric to the same product from vascular plants. |
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| Keywords: | Lunularis Metzgeria Hepaticae cadinene δ-cadinene |
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