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Phytolaccasaponin B

Reference work entry

CAS Registry Number: 66656-92-6 Open image in new window

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

Biological source: Phytolacca americana [1, 2]

C48H76O21: 988.487

Mp: 218–220°C (i-PrOH-AcOH) [1]

[α]D29 + 38.31° (c 0.93, EtOH) [1]

IR (KBr) νmax cm−1: 3400, 1750 [1]

1H NMR (C5D5N): 1.02, 1.10, 1.25, 1.32, 1.45 (s, CH3 × 5), 3.60 (s, OCH3), 5.55 (m, H-12) [1]

13 C NMR (CD 3OD): [ 2]

Table 1

C-1

44.5

C-16

24.1

Xyl-1

106.3

Glc′-1

95.7

2

71.5

17

47.4

2

75.1

2

73.9

3

83.4

18

43.9

3

76.3

3

78.3

4

43.1

19

43.3

4

78.5

4

71.0

5

48.1

20

44.9

5

64.6

5

78.7

6

18.6

21

31.3

Glc-1

103.4

6

62.3

7

33.4

22

34.4

2

74.6

   

8

40.7

23

65.4

3

77.8

   

9

49.4

24

14.7

4

71.6

   

10

37.5

25

17.6

5

78.1

   

11

24.7

26

17.7

6

62.6

   

12

124.4

27

26.3

       

13

144.5

28

177.5

       

14

43.0

29

28.6

       

15

28.8

30

178.7

       
   

OCH3

52.4

       

References

  1. 1.
    Y. Suga, Y. Maruyama, S. Kawanishi, J. Shoji, Chem. Pharm. Bull. 26(2), 520 (1978)CrossRefGoogle Scholar
  2. 2.
    H. Takahashi, Y. Namikawa, M. Tanaka, Y. Fukuyama, Chem. Pharm. Bull. 49(2), 246 (2001)CrossRefGoogle Scholar

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