Cytotoxic constituents from Podocarpus fasciculus

Yu Jen Kuo, Shy Yuan Hwang, Ming Der Wu, Chia Ching Liao, Yu Han Liang, Yao Haur Kuo, Hsiu O. Ho

研究成果: 雜誌貢獻文章同行評審

42 引文 斯高帕斯(Scopus)


A new diterpene, 16-hydroxy communic acid (1), along with thirty one known compounds including five norditerpenes (2-6), twenty two flavonoids containing four biflavonoids (7-10), nine monoflavonoids (11-19) and nine flavanoid glycosides (20-28), as well as four phenolic constituents (29-32) were isolated from the 95% ethanolic extract of Podocarpus fasciculus. The structure of 1 was elucidated using spectral methods. Of these isolates, nagilactone C (2) showed the most significant inhibitory effects against DLD cells (human colon carcinoma) (ED50=2.57 μg/ml) and compounds 7, 8, 10, 11, and 12 had moderate cytotoxic activity against human KB (human oral epithelium carcinoma), Hela (human cervical carcinoma), Hepa (human hepatoma), DLD (colon carcinoma), and A-549 (human lung carcinoma) tumor cell lines. Preliminary structure-activity relationship studies of the isolated diterpenoids and biflavonoids are discussed.

頁(從 - 到)585-588
期刊Chemical and Pharmaceutical Bulletin
出版狀態已發佈 - 4月 2008

ASJC Scopus subject areas

  • 藥物發現
  • 化學 (全部)


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