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Kudzusaponin A2

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – Kudzusapogenol A

Biological source: Pueraria lobata [1]

C42H68O16: 828.450

[α]D25 + 5.0° (c 0.56, C5H5N:H2O 1:1) [1]

FAB-MS (positive ion mode) m/z: 873 (M + 2Na)+, 851.4405 (M + Na)+, 711 (M + 2Na-Gal)+, 513 (M + Na-Gal-GlcUA)+ [1]

1H NMR (270 MHz, J/Hz, C5D5N): 0.73, 0.95, 1.31, 1.32, 1.35, 1.52 (s, CH3 × 6), 5.34 (s, H-12)

β-D-GlcUAp: 4.96 (d, J = 7.0, H-1)

β-D-Galp: 5.54 (d, J = 7.0, H-1) [1]

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

Table 1

C-1

38.5

C-16

27.3

GlcUA-1

104.9

2

26.6

17

39.0

2

80.9

3

90.6

18

43.2

3

77.7

4

43.8

19

41.0

4

73.6

5

56.0

20

41.0

5

78.2

6

18.6

21

70.3

6

172.4

7

32.8

22

79.7

Gal-1

104.9

8

40.1

23

22.6

2

73.0

9

47.6

24

63.5

3

75.4

10

36.4

25

15.6

4

71.1

11

24.0

26

16.8

5

77.2

12

122.4

27

26.6

6

62.6

13

144.6

28

22.2

   

14

41.9

29

71.9

   

15

26.6

30

17.5

   

References

  1. 1.
    T. Arao, J. Kinjo, T. Nohara, R. Isobe, Chem. Pharm. Bull. 45(2), 362 (1997)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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