Clerodane and labdane diterpenoids from Baccharis species |
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| Authors: | Ferdinand Bohlmann Shanta Banerjee Jasmin Jakupovic Michael Grenz Laxmi N Misra Guillermo Schmeda-Hirschmann Robert M King Harold Robinson |
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| Institution: | 1. Institute for Organic Chemistry, Technical University of Berlin, D-1000 Berlin 12, West Germany;2. Smithsonian Institution, Department of Botany, Washington, DC 20560, U.S.A. |
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| Abstract: | The investigation of eight Baccharis species afforded, in addition to known compounds, five new clerodanes, three labdane derivatives and a nor-diterpene as well as one hydroperoxide derived from 4α-hydroxygermacra-1(10), 5-diene. The structures were elucidated by spectroscopic methods. The structures of esters isolated previously from B. cassinaefolia have to be revised. Chemotaxonomic aspects are discussed briefly. |
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| Keywords: | Compositae diterpenes clerodanes labdanes nor-diterpene |
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