Abstract
A new furoclerodane, croblongifolin, together with one known clerodane, crovatin and one known labdane, nidorellol, were isolated from the stem bark of Croton oblongifolius. Structures were established based on spectroscopic and X-ray analysis. Croblongifolin showed a significant cytotoxicity against various human tumor cell lines including HEP-G2, SW620, CHAGO, KATO3 and BT474.
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Sophon Roengsumran
Department of Chemistry
Faculty of Science
Chulalongkorn University
Bangkok
10330 Thailand
Fax: +66-2-253-0321
Email: amorn.p@chula.ac.th
