title: New Pseudoguaianolides from Ambrosia maritima.
abstract: 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.
authors.affiliation: Institute for Organic Chemistry, Technical University of Berlin, Straße des 17. Juni 135, D-1000 Berlin 12, Federal Republic of Germany.
authors.forename: J
authors.initials: J
authors.lastname: Jakupovic
authors.forename: H
authors.initials: H
authors.lastname: Sun
authors.forename: S
authors.initials: S
authors.lastname: Geerts
authors.forename: F
authors.initials: F
authors.lastname: Bohlmann