Kudzusaponin A4

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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 + 9.5° (c 0.55, C5H5N:H2O 1:1) [1]

FAB-MS (positive ion mode) m/z: 873 (M + 2Na)+, 851.4411 (M + Na)+, 711 (M + 2Na-Glc)+, 513 (M + Na-Glc-GlcUA)+ [1]

FAB-MSm/z: 827 (M-H), 665 (M-H-Glc) [1]

1H NMR (270 MHz, J/Hz, C5D5N): 0.71, 0.95, 1.31, 1.32, 1.36, 1.52 (s, CH3 × 6), 5.34 (s, H-12)

β-D-GlcUAp: 4.96 (d, J = 8.0, H-1)

β-D-Glcp: 5.61 (d, J = 7.0, H-1) [1]

13 C NMR (400 MHz, C 5D 5N): [ 1]

Table 1

C-1

38.6

C-16

27.5

GlcUA-1

105.3

2

26.8

17

39.2

2

81.9

3

90.8

18

43.4

3

77.9

4

43.9

19

41.2

4

73.1

5

56.2

20

41.2

5

78.4

6

18.7

21

70.5

6

172.7

7

33.0

22

80.0

Glc-1

104.9

8

40.3

23

22.7

2

76.0

9

47.8

24

63.5

3

78.6

10

36.5

25

15.7

4

70.0

11

24.2

26

17.0

5

78.4

12

122.6

27

26.8

6

61.7

13

144.8

28

22.4

   

14

42.2

29

71.7

   

15

26.8

30

17.7

   

References

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

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