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Actinostemmoside B

Reference work entry

CAS Registry Number: 108906-63-4 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,20,27-tetraol

Biological source: Actinostemma lobatum [1]

C36H62O9: 638.439

Mp: 142–145°C (EtOH) [1]

[α]D19 + 15.4° (c 0.5, MeOH) [1]

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

1H NMR (J/Hz, C5D5N + D2O): 3.46 (t, J = 8, H-3), 4.05 (dd, J = 11, 4, H-7), 2.17 (m, H-17), 1.26 (s, H-18), 0.88 (s, CH3-19), 1.50 (s, CH3-21), 2.52, 2.62 (m, H2-23), 5.50 (t, J = 7, H-24), 2.02 (s, CH3-26), 4.50, 4.57 (d, J = 12, H2-27), 1.20 (s, CH3-28), 1.05 (s, CH3-29), 1.13 (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

28.1

Glc-1

98.6

2

28.4

17

47.6

2

75.6

3

78.1

18

10.5

3

79.0

4

39.4

19

16.7

4

71.9

5

54.1

20

82.5

5

References

  1. 1.
    M. Iwamoto, T. Fujioka, H. Okabe, K. Mihashi, T. Yamauchi, Chem. Pharm. Bull. 35(2), 553 (1987)CrossRefGoogle Scholar
  2. 2.
    Chiang Su new Medical College, Dictionary of Chinese Crude Drugs (Shanghai Scientific Technologic Publisher, Shanghai, 1977), p. 936Google Scholar

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© Springer Science+Business Media New York 2013

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