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Eupteleasaponin X

Reference work entry

CAS Registry Number: 290809-56-2 Open image in new window

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

Biological source: Euptelea polyandra [1]

C42H66O14: 794.445

Mp: 237–239°C [1]

[α]D26 + 12.1° (c 0.1, MeOH) [1]

IR (KBr) νmax cm−1: 3389, 1740, 1655, 1076 [1]

1H NMR (500 MHz, J/Hz, C5D5N): 0.84, 0.98, 1.00, 1.57 (s, CH3-25, 24, 26, 30), 1.30 (s, CH3-23, 27), 3.33 (dd, J = 4.0, 11.6, H-3), 3.41 (dd, J = 4.0, 14.2, H-18), 5.53 (brs, H-12)

β-D-Glcp: 4.83 (d, J = 7.9, H-1)

α-L-Rhap: 5.82 (brs, H-1), 1.67 (d, J = 6.3, CH3-6) [1]

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

Table 1

C-1

38.7

C-16

23.8

Glc-1

106.6

2

26.5

17

46.6

2

75.9

3

89.0

18

41.1

3

77.0

4

39.5

19

41.1

4

78.7

5

55.9

20

42.6

5

77.0

6

18.5

21

29.3

6

61.8

7

33.2

22

32.4

Rha-1

102.8

8

39.8

23

28.3

2

72.6

9

48.0

24

17.0

3

72.8

10

37.1

25

15.5

4

74.0

11

23.8

26

17.4

5

70.3

12

122.7

27

26.1

6

18.5

13

144.4

28

180.9

   

14

42.2

29

184.3

   

15

28.3...

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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