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Kizuta-Saponin K7c

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

Biological source: Hedera rhombea [1]

C42H72O13: 784.497

Mp: 217–220°C (MeOH) [1]

[α]D20 + 2.8° (c 1.00, MeOH) [1]

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

1H NMR (100 MHz, J/Hz, C5D5N): 3.39 (m, H-3), 0.79 (s, CH3-18), 0.95 (s, CH3-19), 1.39 (s, CH3-21), 5.73 (t-like, H-24), 1.81 (s, CH3-27), 1.00 (s, CH3-28), 1.31 (s, CH3-30)

β-D-Glcp: 4.94 (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

39.4

C-16

28.2

Glc-1

103.6

2

26.8

17

50.4

2

75.2

3

89.0

18

16.5

3

78.7

4

39.7

19

15.7

4

71.8

5

56.5

20

74.1

5

78.5

6

18.5

21

26.0

6

62.9

7

35.7

22

41.6

Glc′-1

107.0

8

40.7

23

22.9

2

75.8

9

51.1

24

129.4

3

78.8

10

37.1

25

132.2

4

71.9

11

21.9

26

75.2

5

78.3

12

25.3

27

14.3

6

63.1

13

42.6

28

28.2

   

14

50.7

29

16.8

   

15

31.7

30

16.8

   

References

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

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© Springer Science+Business Media New York 2013

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