Actinostemmoside C

Reference work entry

CAS Registry Number: 108906-62-3 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,7β,18,20,27-pentaol

Biological source: Actinostemma lobatum [1]

C36H62O10: 654.434

Mp: 194–197°C (MeOH) [1]

[α]D17 + 3.3° (c 1.0, MeOH) [1]

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

1H NMR (J/Hz, C5D5N-D2O): 3.45 (t, J = 8, H-3), 4.11 (dd, J = 11, 3, H-7), 2.33 (ddd, J = 11, 11, 2, H-13), 4.49, 4.68 (d, J = 12, H2-18), 1.05 (s, CH3-19), 1.52 (s, CH3-21), 5.45 (t, J = 7, H-24), 1.99 (s, CH3-26), 4.47, 4.52 (d, J = 12, H2-27), 1.20 (s, CH3-28), 1.02 (s, CH3-29), 1.16 (s, CH3-30)

β-D-Glcp: 5.02 (d, J = 8, H-1), 3.92 (dd, J = 8, 9, H-2), 4.20 (t, J = 9, H-3), 4.11 (t, J = 9, H-4), 3.84 (ddd, J = 9, 5, 3, H-5), 4.25 (dd, J = 5, 12, H-6), 4.41 (dd, J = 12, 2, H-6) [1]

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

Table 1

C-1

39.8

C-16

28.2

Glc-1

98.7

2

28.5

17

47.4

2

75.6

3

78.0

18

62.0

3

78.9

4

39.5

19

16.9

4

71.9

5

54.6

References

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

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