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Gymnocladus-Saponin A

Reference work entry

CAS Registry Number: 95753-65-4 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]

C41H64O15: 796.424

Mp: 214–217°C (MeOH-Et2O) [1]

[α]D25 + 0.6° (c 0.72, MeOH) [1]

IR (KBr) νmax cm−1: 3500–3600, 1760 [1]

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

Table 1

C-1

43.8

C-16

66.7

Glc-1

105.0

Ara-1

104.6

2

70.7

17

49.9

2

75.1

2

72.2

3

83.2

18

41.7

3

78.3

3

73.9

4

42.6

19

42.9

4

71.8

4

68.7

5

48.3

20

34.1

5

76.3

5

66.1

6

18.2

21

83.6

6

69.7

   

7

32.3

22

27.1

       

8

40.5

23

65.6

       

9

47.8

24

15.0

       

10

37.1

25

16.2

       

11

23.9

26

17.3

       

12

124.7

27

28.5

       

13

140.2

28

181.1

       

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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