- Antitumor agents. Part 218: Cappamensin A, a new In vitro anticancer principle, from Capparis sikkimensis.
Antitumor agents. Part 218: Cappamensin A, a new In vitro anticancer principle, from Capparis sikkimensis.
Bioorganic & medicinal chemistry letters (2003-06-12)
Jiu Hong Wu, Fang Rong Chang, Ken ichiro Hayashi, Hiroaki Shiraki, Chih Chuang Liaw, Yuka Nakanishi, Kenneth F Bastow, Donglei Yu, Ih Sheng Chen, Kuo Hsiung Lee
PMID12798338
RESUMEN
A new inhibitor of in vitro tumor cell replication, cappamensin A (1) (2H-1,4-benzoxazin-3(4H)-one, 6-methoxy-2-methyl-4-carbaldehyde), was isolated from the roots of Capparis sikkimensis subsp. formosana using bioactivity-guided fractionation. The structure of 1 was established by spectroscopic methods, including 2D NMR analyses. Compound 1 displayed significant in vitro anticancer activity against ovarian (1A9), lung (A549), ileocecal (HCT-8), breast (MCF-7), nasopharyngeal (KB), and vincristine resistant (KB-VIN) human tumor cell lines with ED(50) values </=4 microgram/mL (mean GI(50) value of 15.1 microM).
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