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Eupteleasaponin VIII

Reference work entry

CAS Registry Number: 354802-18-9 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 3β,20α-Dihydroxy-29-nor-olean-12-en-28-oic Acid

Biological source: Euptelea polyandra [1]

C35H56O10: 636.387

Mp: 199–201°C [1]

[α]D26 + 73.9° (c 0.1, MeOH) [1]

IR (KBr) νmax cm−1: 3432, 1709, 1078 [1]

1H NMR (500 MHz, J/Hz, C5D5N): 0.83, 0.92, 1.22, 1.36, 1.38 (s, CH3-25, 26, 27, 23, 30), 3.32 (m, H-18), 3.51 (dd-like, H-3), 4.30, 4.48 (m, H2-24), 5.51 (brs, H-12)

β-D-Glcp: 4.90 (d, J = 7.6, H-1) [1]

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

Table 1

C-1

39.0

C-16

23.7

Glc-1

105.6

2

28.1

17

46.6

2

75.0

3

79.4

18

44.2

3

78.2

4

43.0

19

47.8

4

71.5

5

56.6

20

69.8

5

78.3

6

19.2

21

35.9

6

61.5

7

33.4

22

34.9

   

8

39.6

23

23.3

   

9

48.0

24

73.2

   

10

37.0

25

15.6

   

11

23.8

26

17.0

   

12

122.4

27

25.8

   

13

144.1

28

179.8

   

14

41.9

29

-

   

15

28.2

30

25.4

   

References

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

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