Sesquiterpene lactone chemistry of Zaluzania grayana from online LC-NMR measurements

Publication Type
Journal contribution
Authors
Spring, O.; Buschmann, H.; Vogler, B.; Schilling, E. E.; Spraul, M.; Hoffmann, M.
Year of publication
1995
Published in
Phytochemistry
Band/Volume
39/3
Page (from - to)
609-612
Abstract

Online LC-NMR measurements were used for the first time to elucidate the sesquiterpene lactone chem. of a Compositae species, Zaluzania grayana. Structure elucidation of three compds., visible in HPLC anal. of the constituents of glandular trichomes, was performed on a leaf ext. of less than a gram of dried plant tissue by means of direct coupling of the HPLC and NMR instruments. The structures could be assigned to the guaianolide zaluzanin C, a new modified guaianolide and to the 15-hydroxy deriv. of costunolide. The taxonomic relevance of the identified compds. is discussed.

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