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Lignans and sesquiterpenes from Magnolia praecocissima
Hironobu Takahashi1, Seiko Yoshioka, Shoichi Kawano
1Institute of Pharmacognosy, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Japan.
Chemical & Pharmaceutical Bulletin
|April 20, 2002
Abstract:
A new lignan 1 was isolated together with the five known lignans 2-6 and four sesquiterpenes 7-10 from the seeds of Magnolia praecocissima. The structure of 1 was elucidated by analysis of spectroscopic data and chemical reaction. Furthermore, the absolute configurations of 1, 2, and 3 were determined by the modified Mosher's method.