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Kochianoside III

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 3β,12α-Dihydroxy-olean-28,13β-olid

Biological source: Kochia scoparia [1]

C41H64O14: 780.429

Mp: 224–225°C (CHCl3-MeOH) [1]

[α]D26 + 47.9° (c 0.6, MeOH) [1]

IR (KBr) νmax cm−1: 3456, 2932, 2900, 1736, 1719, 1655, 1040 [1]

FAB-MS (negative ion mode) m/z: 779 (M-H), 647 (M-C5H9O4), 471 (M-C11H17O10) [1]

FAB-MS (positive ion mode) m/z: 803.4194 (M + Na)+ [1]

1H NMR (J/Hz, C5D5N): 0.80, 0.82, 0.92, 0.98, 1.28, 1.29, 1.62 (s, CH3-25, 30, 29, 24, 27, 23, 26), 2.28 (m, H-18), 3.29 (dd, J = 3.9, 11.6, H-3), 4.12 (m, H-12)

β-D-GlcUAp:4.95 (d, J = 7.9, H-1)

β-D-Xylp:5.30 (d, J = 7.6, H-1) [1]

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

Table 1

C-1

39.0

C-18

51.8

GlcUA-1

106.9

2

26.7

19

39.7

2

74.6

3

89.4

20

31.8

3

86.6

4

39.6

21

34.6

4

71.4

5

55.8

22

28.4

5

77.5

6

18.0

23

28.0

6

172.0

7

34.5

24

16.7

Xyl-1

106.2

8

42.8

25

16.6

2

75.2

9

45.0

26

18.8

3

78.1

10

References

  1. 1.
    M. Yoshikawa, Y. Dai, H. Shimada, T. Morikawa, N. Matsumura, S. Yoshizumi, H. Matsuda, H. Matsuda, M. Kubo, Chem. Pharm. Bull. 45(6), 1052 (1997)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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