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Eupteleasaponin VI

Reference work entry

CAS Registry Number: 290809-37-9 Open image in new window

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

Biological source: Euptelea polyandra [1]

C47H72O18: 924.471

Mp: 184–187°C [1]

[α]D25 + 46.8° (c 0.1, MeOH) [1]

IR (KBr) νmax cm−1: 3453, 1775, 1658, 1055 [1]

HR-FAB-MSm/z: 947.4616 [1]

1H NMR (500 MHz, J/Hz, C5D5N): 0.90, 1.09, 1.12, 1.18, 1.23 (s, CH3-25, 26, 24, 27, 23), 2.33 (dd-like, H-18), 3.03 (brs, H-11), 3.14 (d-like, H-12), 3.38 (dd-like, H-3), 4.73 (m, H2-29)

β-D-Glcp: 4.80 (d-like, H-1)

β-D-Glcp′: 5.08 (d, J = 7.0, H-1)

α-L-Rhap: 6.36 (brs, H-1), 1.65 (d, J = 5.4, CH3-6) [1]

13 C NMR (125 MHz, C 5D 5N): [ 1]

Table 1

C-1

38.8

C-19

34.7

Glc-1

104.9

2

26.4

20

147.1

2

77.1

3

88.4

21

30.2

3

89.3

4

39.6

22

22.0

4

69.9

5

55.3

23

27.7

5

77.8

6

17.8

24

16.5

6

62.2

7

31.4

25

17.4

Rha-1

101.6

8

41.7

26

20.7

2

72.2

9

51.1

27

18.9

3

72.4

10

36.5

28

178.2

4

73.8

11

52.8

29

109.9

5

69.8

12

57.2

   

References

  1. 1.
    T. Murakami, H. Oominami, H. Matsuda, M. Yoshikawa. Chem. Pharm. Bull. 49(6), 741 (2001)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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