New Pseudoguaianolides from Ambrosia maritima.
The investigation of the aerial parts of two collections of AMBROSIA MARITIMA afforded in addition to known pseudoguaianolides nine new ones including two nor-sesquiterpene lactones and two dimeric lactones. The structures were elucidated by highfield (1)H-NMR spectroscopy.
Jakupovic
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J
Institute for Organic Chemistry, Technical University of Berlin, Straße des 17. Juni 135, D-1000 Berlin 12, Federal Republic of Germany.
Sun
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Geerts
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Bohlmann
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