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Kizuta-Saponin K9

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Dammarane Type – 20(S)-Dammar-24-en-3β,6α,20,26-tetraol

Biological source: Hedera rhombea [1]

C42H72O14: 800.492

Mp: 144–147°C (MeOH–AcOEt) [1]

[α]D20 + 10.8° (c 1.05, MeOH) [1]

IR (KBr) νmax cm−1: 3400, 1100–1000 [1]

1H NMR (100 MHz, J/Hz, C5D5N): 3.45 (m, H-3), 0.90 (s, CH3-18), 1.01 (s, CH3-19), 1.40 (s, CH3-21), 5.73 (H-24), 1.81 (CH3-27), 1.04 (CH3-28), 2.05 (CH3-29), 1.38 (CH3-30)

β-D-Glcp: 4.98 (d, J = 7.1, H-1)

β-D-Glcp′: 4.87 (d, J = 7.3, H-1) [1]

13 C NMR (25 MHz, C 5D 5N): [ 1]

Table 1

C-1

39.3

C-16

28.1

Glc-1

107.3

2

26.7

17

50.4

2

75.9

3

89.6

18

17.5

3

78.8

4

39.0

19

17.3

4

71.9

5

61.9

20

74.1

5

78.3

6

67.6

21

26.0

6

63.1

7

48.0

22

41.5

Glc′-1

103.5

8

41.7

23

22.9

2

75.2

9

50.7

24

129.4

3

78.6

10

40.6

25

132.2

4

71.7

11

21.9

26

75.2

5

78.4

12

25.3

27

14.2

6

62.8

13

42.1

28

31.4

   

14

50.7

29

17.0

   

15

31.6

30

16.8

   

References

  1. 1.
    H. Kizu, M. Koshijima, T. Tomimori, Chem. Pharm. Bull. 33(8), 3176 (1985)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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