Rotundioside D

Reference work entry

CAS Registry Number: 100665-38-1 Open image in new window

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

Biological source: Bupleurum rotundifolium [1]

C48H80O17: 928.539

Mp: 207–210°C (MeOH–H2O) [1]

[α]D24 −14.1° (c 0.5) [1]

UV λmax nm: 210 [1]

1H NMR (100 MHz, J/Hz, C5D5N): 5.39 (brs, H-16), 5.65 (brs, H-12)

β-D-Glcp: 5.62 (d, J = 7.0, H-1); β-D-Glcp′: 5.70 (d, J = 7.0, H-1)

α-L-Rhap: 6.26 (brs, H-1) [1]

13 C NMR (100 MHz, C 5D 5N): [ 1]

Table 1

C-1

38.8

C-16

74.1

Glc-1

105.0

Rha-1

101.7

2

26.4

17

40.8

2

79.1

2

72.2

3

89.8

18

42.4

3

77.6

3

72.7

4

39.6

19

48.2

4

71.7

4

74.1

5

55.9

20

30.3

5

78.3

5

69.2

6

18.7

21

36.8

6

62.6

6

18.6

7

33.3

22

31.1

Glc′-1

101.7

   

8

40.0

23

28.2

2

79.0

   

9

47.0

24

16.7

3

77.6

   

10

36.8

25

15.6

4

72.4

   

11

23.8

26

17.1

5

78.3

   

12

122.5

27

27.2

6

63.3

   

13

145.1

28

70.2

       

14

41.9

29

33.4

       

15

34.6

30

24.8

       

References

  1. 1.
    E. Akai, T. Takeda, Y. Kobayashi, Y. Chen, Y. Ogihara, Chem. Pharm. Bull. 33(11), 4685 (1985)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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