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Kizuta-Saponin K5

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

Biological source: Hedera rhombea [1]

C36H60O9: 636.423

Mp: 133–135°C (dil. MeOH) [1]

[α]D20 + 84.5° (c 1.04, MeOH) [1]

IR (KBr) νmax cm−1: 3400, 1690, 1100–1000 [1]

1H NMR (100 MHz, J/Hz, C5D5N): 0.78 (s, CH3-18), 0.99 (s, CH3-19), 1.39 (s, CH3-21), 5.73 (t-like, H-24), 1.82 (s, CH3-27), 1.01 (s, CH3-28), 1.66 (s, CH3-29), 1.66 (s, CH3-30)

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

40.2

C-16

28.1

Glc-1

103.5

2

33.4

17

50.4

2

75.2

3

218.6

18

17.7

3

78.6

4

47.8

19

16.1

4

72.0

5

59.6

20

74.3

5

78.2

6

66.9

21

26.0

6

63.1

7

45.9

22

41.5

   

8

41.3

23

23.0

   

9

49.6

24

129.4

   

10

38.4

25

132.3

   

11

22.9

26

75.2

   

12

25.3

27

14.2

   

13

42.4

28

32.2

   

14

50.6

29

20.0

   

15

31.6

30

16.7

   

References

  1. 1.
    H. Kizu, M. Koshijima, M. Hayashi, T. Tomimori, Chem. Pharm. Bull. 33(4), 1400 (1985)CrossRefGoogle Scholar

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