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DOI: 10.1055/s-2002-35648
© Georg Thieme Verlag Stuttgart · New York
Antioxidative 7-Oxodehydropodocarpane-Type Trinorditerpenes from the Bark of Taiwania cryptomerioides
Publication History
Received: November 16, 2001
Accepted: June 29, 2002
Publication Date:
26 November 2002 (online)
![](https://www.thieme-connect.de/media/plantamedica/200211/lookinside/thumbnails/10.1055-s-2002-35648-1.jpg)
Abstract
Five new 7-oxopodocarpane-type trinorditerpenes together with 1β,13,14-trihydroxy-8,11,13-podocarpatrien-7-one (1) were isolated from the bark of Taiwania cryptomerioides. By using NMR and other spectral methods, the structures of five new compounds, 14-hydroxy-13-methoxy-8,11,13-podocarpatriene-3,7-dione (2), 1β,14-dihydroxy-13-methoxy-8,11,13-podocarpatrien-7-one (3), 13,14-dihydroxy-8,11,13-podocarpatriene-3,7-dione (4), 3β,13,14-trihydroxy-8,11,13-podocarpatrien-7-one (5), and 1β,13,14-trihydroxy-8,11,13-podocarpatriene-2,7-dione (6), were elucidated. Compounds 1, 4, 5, and 6 exhibited strong antioxidative activity.
Key words
Taiwania cryptomerioids - Taxodiaceae - podocarpane - antioxidative activity
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Prof. Yueh-Hsiung Kuo
Department of Chemistry, National Taiwan University
Taipei 106
Taiwan R.O.C.
Email: yhkuo@ccms.ntu.edu.tw
Phone: +886-223638146
Fax: +886-223636359