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Actinostemmoside H

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Dammarane Type – 20(S)-Dammar-24-en-3β,7β,18,20,27-pentaol

Biological source: Actinostemma lobatum [1]

C42H72O15: 816.487

Mp: 135–140°C (aq. MeOH) [1]

[α]D24 + 1.6° (c 0.54, MeOH) [1]

FAB-MSm/z: 839 [M + Na]+, 815 [M-H] [1]

1H NMR (400 MHz, J/Hz, C5D5N): 0.92, 1.65 (H-1), 3.47 (dd, J = 6, 10, H-3), 0.97 (dd, J = 3, 10, H-5), 4.12 (dd, J = 1, 10, H-7), 1.26 (s, H-9), 2.30 (ddd, J = 2, 11, 11, H-13), 4.52, 4.70 (d, J = 12, H2-18), 1.02 (s, CH3-19), 1.57 (s, CH3-21), 2.50 (m, H-23), 5.53 (t, J = 7, H-24), 1.94 (s, CH3-26), 4.62, 4.68 (d, J = 12, H2-27), 1.20 (s, CH3-28), 1.20 (s, CH3-29), 1.04 (s, CH3-30)

β-D-Glcp: 5.06 (d, J = 8, H-1), 3.98 (dd, J = 8, 9, H-2), 4.24 (t, J = 9, H-3), 4.15 (t, J = 9, H-4), 3.90 (ddd, J = 9, 6, 3, H-5), 4.28 (dd, J = 6, 12), 4.45 (dd, J = 12, 3, H2-6)

β-D-Glcp′: 4.87 (d, J = 8, H-1), 4.02 (dd, J = 8, 9, H-2), 4.25 (t, J =...

References

  1. 1.
    T. Fujioka, Y. Iwase, H. Okabe, K. Mihashi, T. Yamauchi, Chem. Pharm. Bull. 35(9), 3870 (1987)CrossRefGoogle Scholar

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