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Saikosaponin b1

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 16-epi-saikogenin D

Biological source: Bupleurum falcatum [1, 2]

C42H68O13: 780.465

Mp: 237–241°C (MeOH–Et2O) [2]

[α]D24.5 − 9.1° (c 1.03, MeOH) [2]

UV λmaxEtOH nm (ε): 242.5 (23700), 251 (27600), 260.5 (17400) [2]

1H NMR (100 MHz, J/Hz, C5D5N): 0.87, 0.98, 0.98, 1.09, 0.92, 0.87 (s, CH3-24, 25, 26, 27, 29, 30)

β-D-Fucp: 1.46 (CH3-6) [1]

13 C NMR (15 MHz, C 5D 5N): [ 1]

Table 1

C-1

38.7

C-16

76.5

Fuc-1

105.5

2

25.8

17

44.8

2

71.8

3

82.4

18

133.6

3

85.2

4

43.7

19

38.7

4

72.1

5

48.1

20

32.8

5

71.0

6

18.8

21

35.4

6

17.0

7

32.2

22

30.2

Glc-1

106.0

8

40.8

23

65.2

2

75.7

9

54.7

24

12.9

3

78.3

10

36.9

25

18.5

4

72.1

11

127.1

26

17.3

5

78.3

12

125.7

27

22.1

6

63.1

13

136.8

28

64.1

   

14

44.6

29

25.0

   

15

35.1

30

32.8

   

References

  1. 1.
    H. Ishii, M. Nakamura, S. Seo, K. Tori, T. Tozyo, Y. Yoshimura, Chem. Pharm. Bull. 28(8), 2367 (1980)CrossRefGoogle Scholar
  2. 2.
    A. Shimaoka, S. Seo, H. Minato, J. Chem. Soc. Perkin Trans. I. 20, 2043 (1975)CrossRefGoogle Scholar

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