Abstract
A new carbazole alkaloid named clauraila E (1) together with 8 known compounds were isolated from the methanol extract of the roots of Clausena harmandiana. All compounds were evaluated for antifungal activity against Pythium insidiosum using disc diffusion assay. Pythium insidiosum is a fungus-like microorganism, for which antifungals available now are not effective. It was found that compounds 3, 6, 7 and 9 could inhibit the mycelia growth of P. insidiosum. The results show convincingly that they may be lead to compounds for the development of probiotic or novel antifungal drugs.
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Acknowledgments
We thank the Royal Golden Jubilee Scholarship (PHD/0008/2553) and the National Research University Project of Thailand through the Advanced Functional Materials Cluster of Khon Kaen University for financial support. The Center of Excellence for Innovation in Chemistry (PERCH-CIC), Office of the Higher Education Commission, Ministry of Education is gratefully acknowledged.
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Sriphana, U., Thongsri, Y., Prariyachatigul, C. et al. Clauraila E from the roots of Clausena harmandiana and antifungal activity against Pythium insidiosum . Arch. Pharm. Res. 36, 1078–1083 (2013). https://doi.org/10.1007/s12272-013-0115-5
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DOI: https://doi.org/10.1007/s12272-013-0115-5