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Natural Product Research
Formerly Natural Product Letters
Volume 31, 2017 - Issue 12
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Research Articles

A new cerebroside and the cytotoxic constituents isolated from Xylaria allantoidea SWUF76

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Pages 1422-1430 | Received 01 Aug 2016, Accepted 25 Oct 2016, Published online: 20 Nov 2016
 

Abstract

A new cerebroside, namely allantoside (1), and 10 known compounds (211) were isolated from Xylaria allantoidea SWUF76. The structure of compound 1 was determined by comprehensive spectroscopic analysis including 1D and 2D nuclear magnetic resonance (NMR) as well as high-resolution electron ionisation mass spectrometry (HREIMS) and electrospray ionisation mass spectrometry (ESIMS). Compounds 1, 4, 5, 6, 7, 8 and 11 were evaluated for cytotoxic activities against cancer cell lines (Hela, HT29, HCT116 and MCF-7) and normal Vero cell lines by MTT assay. Compounds 6 and 7 exhibited anticancer activity after 24 h of treatment. Compound 7 showed significant cytotoxicity against Hela (IC50 = 2.24 μg/mL), HT29 (IC50 = 2.51 μg/mL), HCT116 (IC50 = 3.50 μg/mL) and MCF-7 (IC50 = 3.77 μg/mL) and Vero (IC50:3.65 μg/mL) cells. Compound 6 showed slight cytotoxicity against all tested cancer cell lines.

Acknowledgements

We would like to thank the Laboratory of Natural Products Research, Faculty of Science and Technology, Phuket Rajabhat Unviversity, Phuket, Thailand for the NMR measurements.

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