Pairs of enantiomeric phenylpropanoid glycosides and their aglycones, (8R)-stroside A (1), (8S)-stroside A (2), (8R)-evofolin B (3), and (8S)-evofolin B (4), were isolated from the hook-bearing stems of Uncaria rhynchophylla (Miq.) Miq. ex Havil. Among of these compounds, (8R)-stroside A (1) was a new one, and other known compounds were isolated from the genus Uncaria for the first time. The structure of the new compound was elucidated by extensive analysis of MS, 1D and 2D NMR, and ECD data.
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Acknowledgment
This research was financially supported by the National Natural Science Foundation of China (NSFC; No. 8187141165) and the Drug Innovation Major Project of China (No. 2018ZX09711001-008-003).
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Published in Khimiya Prirodnykh Soedinenii, No. 6, November–December, 2022, pp. 863–865.
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Liu, XY., Guo, Q., Zhang, YS. et al. Enantiomeric Phenylpropanoids from Uncaria rhynchophylla. Chem Nat Compd 58, 1026–1030 (2022). https://doi.org/10.1007/s10600-022-03860-1
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DOI: https://doi.org/10.1007/s10600-022-03860-1