title: Further eudesmane derivatives from verbesina species.
abstract: The aerial parts of VERBESINA PERSICIFOLIA DC afforded a new eudesmane derivative in addition to known compounds. The roots of V. SUBCORDATA gave also new eudesmane cinnamates in addition to several known ones as well as a 5alpha-hydroxybicyclogermacra-1 (10) E, 4 (15)-diene. A reinvestigation of V. VIRGINICA L. gave two new ( Z)-configurated coumarates. Furthermore the structures of some sesquiterpenes are revised. The structures were elucidated by highfield NMR spectroscopy and a few chemical reactions.
authors.affiliation: Institute for Organic Chemistry, Technical University of Berlin, Straße des 17. Juni 135, D-1000 Berlin 12, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Jakupovic
authors.forename: E
authors.initials: E
authors.lastname: Ellmauerer
authors.forename: Y
authors.initials: Y
authors.lastname: Jia
authors.forename: F
authors.initials: F
authors.lastname: Bohlmann
authors.forename: X A
authors.initials: XA
authors.lastname: Dominguez
authors.forename: G S
authors.initials: GS
authors.lastname: Hirschmann