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Chikusetsusaponin I (Ginsenoside Rg2)

Reference work entry

CAS Registry Number: 52286-74-5 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Dammarane Type – 20(S)-Protopanaxatriol

Biological source: Panax japonicus [1], P. ginseng [2], P. notoginseng [3]

C42H72O13: 784.497

Mp: 189–191°C (EtOH) [1]

[α]D30 + 4.96° (c 1.01, MeOH) [1]

IR (KBr) νmax cm−1: 3400, 1630 [1]

1H NMR (J/Hz, CDCl3) (for permethylate): 0.88-1.65 (CH3 × 9), 3.33-3.63 (CH3O × 8), 5.15 (H-24), 4.60 (d, J = 7.0, H-1 of Glc), 5.35 (brs, H-1 of Rha) [1]

13 C NMR (C 5D 5N) (for aglycone moiety): [ 4]

Table 1

C-1

39.7

C-11

32.2

C-21

27.0

2

27.8

12

71.1

22

35.9

3

78.4

13

48.3

23

23.1

4

40.1

14

51.7

24

126.4

5

60.9

15

31.4

25

130.7

6

74.3

16

27.1

26

26.0

7

46.2

17

54.8

27

17.7

8

41.2

18

17.2

28

32.2

9

49.9

19

17.7

29

17.0

10

39.7

20

73.0

30

17.0

References

  1. 1.
    T.D. Lin, N. Kondo, J. Shoji, Chem. Pharm. Bull. 24, 253 (1976)CrossRefGoogle Scholar
  2. 2.
    S. Sanada, N. Kondo, J. Shoji, O. Tanaka, S. Shibata, Chem. Pharm. Bull. 22(10), 2407 (1974)CrossRefGoogle Scholar
  3. 3.
    J. Zhou, M.-Z. Wu, S. Taniyasu, H. Besso, O. Tanaka, Y. Saruwatari, T. Fuwa, Chem. Pharm. Bull. 29(10), 2844 (1981)CrossRefGoogle Scholar
  4. 4.
    R. Kasai, H. Besso, O. Tanaka, Y. Saruwatari, T. Fuwa, Chem. Pharm. Bull. 31, 2120 (1983)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013

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