Article ID Journal Published Year Pages File Type
1375633 Bioorganic & Medicinal Chemistry Letters 2009 4 Pages PDF
Abstract

Four new dimeric sesquiterpene lactones japonicones A−D (1−4), comprised by eudesmane and guaiane sesquiterpenes, were isolated from the aerial part of Inula japonica Thunb. The structures and stereochemistry of 1−4 were elucidated by use of 2D NMR spectroscopic techniques, X-ray crystallography and modified Mosher method. Japonicone A (1) showed the most potent cytotoxicities against four tumor cell lines, A549, LOVO, CEM and MDA-MB-435.

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Physical Sciences and Engineering Chemistry Organic Chemistry
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