A new chromone, methyl (R)-2-hydroxy-3-((S)-2-(2-hydroxypropan-2-yl)-4-methoxy-5-oxo-2,3-dihydro-5H-furo[3,2-g]chromen-7-yl)propanoate (named as osterichromone A (4)), along with known compounds hamaudol (1), angeliticin A (2), scopoletin (3), and cimifugin (5) were isolated from the stems of Ostericum koreanum. Their structures were elucidated using spectroscopic methods, including extensive 1D and 2D NMR techniques.
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Acknowledgment
This work was supported by an intensified research program (2021) at the College of Pharmacy, Kangwon National University.
In addition, Hee Jun Lee, Yong Jun Lee, Seul Gi Choi, and Hyun Seok Jang contributed equally to this work.
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Published in Khimiya Prirodnykh Soedinenii, No. 2, March–April, 2023, pp. 221–223.
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Lee, H.J., Lee, Y.J., Choi, S.G. et al. A New Chromone from Ostericum koreanum. Chem Nat Compd 59, 259–261 (2023). https://doi.org/10.1007/s10600-023-03970-4
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DOI: https://doi.org/10.1007/s10600-023-03970-4