A new oleanane triterpenoid saponin was isolated from the seeds of Dimocarpus longan Lour. The structure of this compound was elucidated as 3-O-β-D-xylopyranosyl-(1→3)-α-L-rhamnopyranosyl-(1→2)-β-D-xylopyranosyloleanolic acid 28-O-β-D-xylopyranosyl-(1→2)-β-D-glucopyranosyl ester (1), named longanoside C. The structure was determined by means of HR-ESI-MS in positive mode and extensive 1D and 2D NMR spectroscopic studies.
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Published in Khimiya Prirodnykh Soedinenii, No. 2, March–April, 2024, pp. 252–254.
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Vi, T.T.X., Nguyen, H.D., Tu, T.Q. et al. A New Oleanane Triterpenoid Saponin from Dimocarpus longan. Chem Nat Compd 60, 283–286 (2024). https://doi.org/10.1007/s10600-024-04303-9
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DOI: https://doi.org/10.1007/s10600-024-04303-9