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Cynarasaponin E

Reference work entry

CAS Registry Number: 117804-11-2 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – 23-Hydroxy-ursolic Acid

Biological source: Cynara cardunculus [1]

C43H68O15: 824.455 (Me ester)

[α]D25 + 3.7° (c 0.95, MeOH) [1]

1H NMR (89.55 MHz, J/Hz, C5D5N): 5.42 (brs, H-12), 2,48 (d, J = 10.0, H-18)

β-D-GlcUAp: (overlapped H-1), 3.71 (s, COOMe)

β-D-Glcp: 6.22 (d, J = 8.0, H-1) [1]

13 C NMR (22.5 MHz, C 5D 5N): [ 1]

Table 1

C-1

39.0

C-16

24.7

GlcUA-1

106.4

Glc-1

95.7

2

28.8

17

48.4

2

75.5

2

74.1

3

82.4

18

53.4

3

77.9

3

79,2

4

43.5

19

39.4

4

73.1

4

71.3

5

47.6

20

39.2

5

77.3

5

78.9

6

18.2

21

30.9

6

170.8

6

62.4

7

33.3

22

36.8

Me

52.1

   

8

40.3

23

64.4

       

9

48.2

24

13.7

       

10

36.8

25

16.4

       

11

23.9

26

17.4

       

12

126.2

27

23.8

       

13

138.4

28

176.2

       

14

42.6

29

17.8

       

15

26.1

30

21.3

       

References

  1. 1.
    S. Shimizu, N. Ishihara, K. Umehara, T. Miyase, A. Ueno, Chem. Pharm. Bull. 36(7), 2466 (1988)CrossRefGoogle Scholar

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