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DOI: 10.1055/s-0030-1249833
© Georg Thieme Verlag KG Stuttgart · New York
Two New Sesquiterpenes from Acorus calamus
Publikationsverlauf
received September 26, 2009
revised March 20, 2010
accepted March 23, 2010
Publikationsdatum:
23. April 2010 (online)
![](https://www.thieme-connect.de/media/plantamedica/201015/lookinside/thumbnails/10.1055-s-0030-1249833-1.jpg)
Abstract
A novel cadinane sesquiterpene with a propan-2-ylidene, named (1R,4R,6S,10R)-1-hydroxy-7(11)-cadinen-5,8-dione (1), and a new sesquiterpene, named (2R,6R,7S,9S)-1(10),4-cadinadiene-2,9-diol (2), were isolated from the ethanol extract of the rhizome of Acorus calamus L. Their structures were elucidated on the basis of spectroscopic data including NMR spectroscopy and X-ray crystallography. The absolute configurations of compounds 1 and 2 were confirmed by comparison of their experimental optical rotations with those obtained from theoretical calculations at the B3LYP/6–311+G (d) level of theory.
Key words
Acorus calamus L. - Araceae - sesquiterpenes - NMR - X‐ray crystallography
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Prof. Dr. Runhua Lu
Department of Applied Chemistry
College of Sciences
China Agricultural University
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People's Republic of China
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