Further Eudesmane Derivatives from Verbesina Species

J. Jakupovic; E. Ellmauerer; Y. Jia; F. Bohlmann; X. A. Dominguez; G. Schmeda Hirschmann

doi:10.1055/s-2006-962614

Planta Medica, Inhaltsverzeichnis

Planta Med 1987; 53(1): 39-42
DOI: 10.1055/s-2006-962614

Full Papers

Further Eudesmane Derivatives from Verbesina Species

J. Jakupovic¹ , E. Ellmauerer¹ , Y. Jia¹ , F. Bohlmann¹ , X. A. Dominguez² , G. Schmeda Hirschmann³

¹Institute for Organic Chemistry, Technical University of Berlin, Straße des 17. Juni 135, D-1000 Berlin 12, Germany.
²Institute Tecnologico y de Estudios Superiores de Monterrey, Monterrey, Mexico.
³Universidad Nacional de Asuncion, Facultad de Ciencias Quimicas, Asuncion, Paraguay.

Abstract

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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 5α-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.

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