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Pisumsaponin II

Reference work entry

CAS Registry Number: 333334-37-5 Open image in new window

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

Biological source: Pisum sativum [1]

C48H76O18: 940.503

[α]D24 −2.2° (c 0.9, MeOH) [1]

IR (KBr) νmax cm−1: 3454, 2928, 1713, 1645, 1076 [1]

FAB-MSm/z: 939 [M-H], 793 [M-C6H11O4], 631 [M-C12H21O9] [1]

1H NMR (500 MHz, C5D5N): 0.75, 0.94, 1.00, 1.19, 1.23, 1.28, 1.67 (s, CH3-25, 26, 30, 28, 27, 29, 23), 2.34 (dd-like, H-18), 3.57 (dd, J = 5.2, 12.2, H-3), 3.71 (dd-like, H-22), 5.30 (brs, H-12), 10.43 (H-24)

β-D-GlcUAp: 5.05 (d, J = 7.0, H-1)

β-D-Galp: 5.58 (d, J = 7.6, H-1)

α-L-Rhap: 6.25 (brs, H-1) [1]

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

Table 1

C-1

38.1

C-16

28.8

GlcUA-1

105.0

Rha-1

103.0

2

27.1

17

38.1

2

79.5

2

72.3

3

87.2

18

45.5

3

77.5

3

72.8

4

53.6

19

46.8

4

73.3

4

74.4

5

57.4

20

30.9

5

78.5

5

69.6

6

19.2

21

42.4

6

172.4

6

18.9

7

33.2

22

75.6

Gal-1

102.2

   

8

39.9

23

22.3

2

77.0

   

9

46.7...

References

  1. 1.
    T. Murakami, K. Kohno, H. Matsuda, M. Yoshikawa, Chem. Pharm. Bull. 49(1), 73 (2001)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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