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Wistariasaponin A

Reference work entry

CAS Registry Number: 126594-36-3 Open image in new window

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

Biological source: Wisteria brachybotrys [1]

C48H76O18: 940.503

[α]D20 −18.8° (c 0.65, MeOH) [1]

IR (KBr) νmax cm−1: 3400–3600, 1720, 1695 [1]

1H NMR (400 MHz, J/Hz, C5D5N) (Me ester): 5.33 (t like, H-12), 2.57 (brs, H2-21)

β-D-GlcUAp: 5.00 (d, J = 7.6, H-1), 3.76 (s, COOCH3)

β-D-Xylp: 5.70 (d, J = 7.7, H-1)

α-L-Rhap: 6.37 (d, J = 1.2, H-1), 1.81 (d, J = 6.1, CH3-6) [1]

13 C NMR (75 MHz, C 5D 5N) (Me ester): [ 1]

Table 1

C-1

38.76

C-16

27.31

GlcUA-1

105.47

Rha-1

102.31

2

26.64

17

47.78

2

78.63

2

72.34

3

91.12

18

47.39

3

76.81

3

72.67

4

44.30

19

42.84

4

73.61

4

74.30

5

56.35

20

38.87

5

77.55

5

69.38

6

18.60

21

46.99

6

170.44

6

18.91

7

33.13

22

216.24

OMe

52.14

   

8

39.78

23

22.94

Xyl-1

102.55

   

9

47.62

24

62.84

2

79.41

   

10

36.54

25

15.52

3

78.06

   

11

23.95

26

16.83

4

70.84

   

12

123.62...

References

  1. 1.
    T. Konoshima, M. Kozuka, M. Haruna, K. Ito, T. Kimura, H. Tokuda, Chem. Pharm. Bull. 37(10), 2731 (1989)CrossRefGoogle Scholar
  2. 2.
    T. Konoshima, M. Takasaki, M. Kozuka, H. Tokuda, J. Nat. Prod. 50, 1167 (1987)CrossRefGoogle Scholar

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