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Acankoreanoside A

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Miscellaneous Glycosides – 3α-Hydroxy-lup-20(29)-en-23,28-dioic Acid

Biological source: Acanthopanax koreanum [1]

C48H76O19: 956.498

Mp: 225–228°C [1]

[α]D27 −41.2° (c 0.39, EtOH) [1]

IR (KBr) νmax cm−1: 3417, 2942, 1724, 1641, 1066 [1]

HR-FAB-MSm/z: 979.4872 [M + Na]+ [1]

FAB-MSm/z: 980 [M + Na + H]+ [1]

1H NMR (500 MHz, J/Hz, C5D5N): 0.87, 0.95, 1.20, 1.46, 1.70 (s, CH3-27, 25, 26, 27, 30), 1.23, 1.47 (H2-11), 1.66 (d, J = 11.6, H-9), 2.67 (m, H-13), 3.38 (m, H-19), 4.28 (brs, H-3), 4.72, 4.85 (brs, H2-29)

β-D-Glcp: 6.34 (d, J = 7.9, H-1), 4.08 (H-2), 4.21 (t, J = 11.0, H-3), 4.30 (H-4), 4.09 (H-5), 4.28 (H-6), 4.67 (d, J = 9.8, H-6)

β-D-Glcp′: 4.95 (d, J = 7.9, H-1), 3.93 (t, J = 9.2, H-2), 4.13 (H-3), 4.39 (t, J = 9.5, H-4), 3.65 (d, J = 9.2, H-5), 4.07 (d, J = 10.4, H-6), 4.19 (H-6)

α-L-Rhap: 5.84 (brs, H-1), 4.66 (brs, H-2), 4.54 (d, J = 9.2, H-3), 4.34 (H-4), 4.96 (H-5),...

References

  1. 1.
    S.-Y. Chang, Ch.S. Yook, T. Nohara, Chem. Pharm. Bull. 46, 163 (1998)CrossRefGoogle Scholar

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