Advertisement

Actinostemmoside A

Reference work entry

CAS Registry Number: 108906-64-5 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Dammarane Type – 20(S)-Dammar-24-en-3β,6α,20,27-tetraol

Biological source: Actinostemma lobatum [1]

C36H62O9: 638.439

Mp: 125–130°C (EtOH) [1]

[α]D16 + 32.3° (c 0.3, MeOH) [1]

FAB-MSm/z: 661 [M + Na]+ [1]

1H NMR (MHz, J/Hz, C5D5N-D2O): 3.53 (dd, J = 6, 11, H-3), 1.21 (d, J = 11, H-5), 4.38 (ddd, J = 11, 11, 4, H-6), 2.15 (ddd, J = 11, 11, 6, H-17), 0.96 (s, CH3-18), 1.10 (s, CH3-19), 1.47 (s, CH3-21), 2.47, 2.53 (m, H2-23), 5.50 (t, J = 7, H-24), 2.02 (s, CH3-26), 4.49, 4.57 (d, J = 12, H2-27), 1.97 (s, CH3-28), 1.44 (s, CH3-29), 0.94 (s, CH3-30)

β-D-Glcp: 5.03 (d, J = 8, H-1), 3.97 (dd, J = 8, 9, H-2), 4.26 (t, J = 9, H-3), 4.17 (t, J = 9, H-4), 3.88 (ddd, J = 9, 5, 3, H-5), 4.29 (dd, J = 5, 12, H-6), 4.46 (dd, J = 12, 3, H-6) [1]

13 C NMR (C 5D 5N-D 2O): [ 1]

Table 1

C-1

39.6

C-16

28.2

Glc-1

98.6

2

27.9

17

48.4

2

75.6

3

78.5...

References

  1. 1.
    M. Iwamoto, T. Fujioka, H. Okabe, K. Mihashi, T. Yamauchi, Chem. Pharm. Bull. 35(2), 553 (1987)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013

Personalised recommendations