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Molecules 2011, 16(12), 10645-10652; doi:10.3390/molecules161210645

Four Eremophil-9-en-8-one Derivatives from Cremanthodium stenactinium Samples Collected in China

1, 1, 1, 2
1 Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan 2 Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China 3 Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
* Author to whom correspondence should be addressed.
Received: 22 November 2011 / Revised: 9 December 2011 / Accepted: 16 December 2011 / Published: 19 December 2011
(This article belongs to the Special Issue Terpenoids)
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Two samples of Cremanthodium stenactinium (Asteraceae) were collected in Sichuan Province, China. From the ethyl acetate extracts of the roots, three new eremophilane-type sesquiterpenoids and one new trinoreremophilane compound were isolated, together with other known eremophilanes. Their structures were determined based on the spectroscopic data. This is the first report of isolation of eremophilane-type compounds from the genus Cremanthodium.
Keywords: Asteraceae; Cremanthodium stenactinium; eremophilanes; sesquiterpenes Asteraceae; Cremanthodium stenactinium; eremophilanes; sesquiterpenes
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Saito, Y.; Ichihara, M.; Okamoto, Y.; Gong, X.; Kuroda, C.; Tori, M. Four Eremophil-9-en-8-one Derivatives from Cremanthodium stenactinium Samples Collected in China. Molecules 2011, 16, 10645-10652.

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