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Gymnocladus-Saponin B

Reference work entry

CAS Registry Number: 95732-67-5 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 2β,23-Dihydroxy-acacic acid-21,28-lactone

Biological source: Gymnocladus chinensis [1]

C42H66O16: 826.435

Mp: 227–229°C [1]

[α]D25 + 6.7° (c 0.89, MeOH) [1]

IR (KBr) νmax cm−1: 3400–3600, 1760 [1]

13 C NMR (80 MHz, C 5D 5N): [ 1]

Table 1

C-1

43.8

C-16

66.7

Glc-1

103.0

2

70.3

17

49.9

2

83.3

3

82.8

18

41.7

3

76.6

4

42.6

19

42.9

4

71.0

5

48.3

20

34.1

5

78.0

6

18.2

21

83.4

6

62.5

7

32.3

22

27.1

Glc′-1

105.7

8

40.5

23

65.7

2

74.7

9

47.8

24

14.7

3

78.3

10

37.1

25

16.2

4

71.2

11

23.9

26

17.3

5

77.9

12

124.7

27

28.5

6

62.4

13

140.2

28

181.2

   

14

43.4

29

28.8

   

15

38.1

30

24.3

   

References

  1. 1.
    T. Konoshima, T. Sawada, T. Kimura, Chem. Pharm. Bull. 32, 4833 (1984)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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