Journal
ARCHIVES OF PHARMACAL RESEARCH
Volume 33, Issue 1, Pages 71-74Publisher
PHARMACEUTICAL SOC KOREA
DOI: 10.1007/s12272-010-2227-5
Keywords
Magnolia kobus; Magnoliaceae; Sesquiterpenoid; Cytotoxicity
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Funding
- Korean Ministry of Education, Science and Technology
- BioGreen 21 Program
- Rural Development Administration, Republic of Korea
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A new (3) and three known germacrane-type sesquiterpenoids were isolated from the chloroform-soluble fraction of the methanolic extract of the bark of Magnolia kobus (Magnoliaceae) through repeated silica gel and Sephadex LH-20 column chromatography. Their chemical structures were elucidated as costunolide (1), parthenolide (2), isobisparthenolidine (3), and bisparthenolidine (4) by spectroscopic analysis. Compounds 1-4 exhibited cytotoxicity against human A549, SK-OV-3, SK-MEL-2, and HCT15 tumor cells.
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