| Literature DB >> 18178229 |
Orapun Yodsaoue1, Sarot Cheenpracha, Chatchanok Karalai, Chanita Ponglimanont, Suchada Chantrapromma, Hoong-Kun Fun, Akkharawit Kanjana-Opas.
Abstract
The first chemical study on the seeds of Caesalpinia sappan Linn. led to isolation of 11 cassane-type diterpenes, named phanginin A-K (1-11). The skeleton present in compounds 1-8 is rather unusual, consisting of a cassane-type diterpene with an ether bridge between C-19/C-20 in compounds 1-6 and C-11/C-20 in compounds 7 and 8. Their structures were elucidated on the basis of spectroscopic techniques. In addition, the X-ray structure of phanginin A (1) is reported. Only phanginin I (9) exhibited cytotoxic effect against KB cell line with IC50 value of 4.4 microg/ml.Entities:
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Year: 2008 PMID： 18178229 DOI： 10.1016/j.phytochem.2007.11.013
Source DB: PubMed Journal: Phytochemistry ISSN： 0031-9422 Impact factor: 4.072