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Cynarasaponin C

Reference work entry

CAS Registry Number: 117804-09-8 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – Ursolic Acid

Biological source: Cynara cardunculus [1]

C43H68O14: 808.460 (Me ester)

[α]D21−7.5° (c 0.93, MeOH) [1]

1H NMR (89.55 MHz, J/Hz, C5D5N): 5.42 (brs, H-12), 2,50 (d, J = 10.0, H-18)

β-D-GlcUAp: 4.96 (d, J = 7.0, H-1), 3.74 (s, COOMe)

β-D-Glcp: 6.22 (d, J = 7.0, H-1) [1]

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

Table 1

C-1

39.2

C-16

24.8

GlcUA-1

107.3

Glc-1

95.7

2

26.7

17

48.4

2

75.4

2

74.1

3

89.2

18

53.4

3

77.9

3

79.0

4

39.4

19

39.6

4

73.1

4

71.3

5

55.9

20

39.6

5

77.2

5

78.8

6

18.5

21

30.9

6

170.7

6

62.4

7

33.6

22

36,9

Me

52.0

   

8

40.2

23

28.2

       

9

48.1

24

15.8

       

10

36.9

25

17,0

       

11

23.8

26

17.4

       

12

126.1

27

23.8

       

13

138.4

28

176.1

       

14

42.5

29

17.7

       

15

28.7

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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