A novel eremophilane-type sesquiterpenoid, named isoligularonic acid (1), was isolated from the roots and rhizomes of Ligularia intermedia Nakai. Its structure was elucidated by extensive spectroscopic analysis including 1D, 2D NMR, and HR-MS spectra.
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Acknowledgment
This work was supported by National Natural Science Foundation of China (No. 81072552) and Henan Province Science and Technology Innovation Foundation for Outstanding Young Scholars (No. 104100510016).
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Published in Khimiya Prirodnykh Soedinenii, No. 2, March–April, 2013, pp. 222–224.
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Yuan, YL., Fang, LZ., Bai, SP. et al. A novel eremophilane sesquiterpenoid from Ligularia intermedia roots and rhizomes. Chem Nat Compd 49, 258–260 (2013). https://doi.org/10.1007/s10600-013-0575-3
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DOI: https://doi.org/10.1007/s10600-013-0575-3