Advertisement

Hosenkoside K

Reference work entry

Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Miscellaneous Glycosides – Hosenkol A

Biological source: Impatiens balsamina [1]

C54H92O25: 1140.592

Mp: 160–162°C (MeOH) [1]

[α]D20 + 16.3° (c 7.0, MeOH) [1]

FAB-MSm/z: 1139 [M-H], 977 [M-C6H1005-H] [1]

1H NMR (J/Hz, C5D5N): 0.75, 0.80, 0.85, 1.03 (s, CH3 × 4), 1.02 (d, J = 6.6, CH3-27), 2.17 (m, H-25), 3.39 (d, J = 10.7, H-17), 3.25, 4.54 (d, J = 11.9, H2-21), 4.23, 4.54 (d, J = 10.5, H2-28), ca 4.44 (m, H-3)

β-D-Glcp: 5.69 (d, J = 7.3, H-1); β-D-Glcp′: 5.33 (d, J = 7.3, H-1); β-D-Glcp″: 4.84 (d, J = 7.5, H-1); β-D-Glcp″′: 5.28 (d, J = 7.5, H-1) [1]

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

Table 1

C-1

38.8

C-16

32.7

Glc-1

104.6

Glc″-1

105.3

2

26.6

17

79.9

2

83.9

2

75.4

3

81.8

18

15.7

3

78.1

3

78.6

4

43.3

19

17.4

4

71.9

4

71.6

5

47.8

20

36.0

5

78.0

5

78.5

6

17.9

21

72.2

6

63.0

6

62.8

7

33.7

22

37.3

Glc′-1

106.2

Glc″′-1

105.4

8

40.8

23

25.7

2

77.3

2

75.5

9

51.0

24

78.9

3

78.5

3

78.5

10

36.9

25

38.1...

References

  1. 1.
    N. Shoji, A. Umeyama, N. Saitou, K. Yoshikawa, M. Nagai, S. Arihara, Chem. Pharm. Bull. 42(7), 1422 (1994)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013

Personalised recommendations