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Natural Compounds pp 1002-1002 | Cite as

Hovenidulcioside B2

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Miscellaneous Glycosides – Hovenidulcigenin B

Biological source: Hovenia dulcis [1]

C38H60O12: 708.408

Mp: 133–136°C (aq. MeOH) [1]

[α]D25 −6.0° (c 0.1, MeOH) [1]

IR (KBr) νmax cm−1: 3432, 1773, 1734, 1043 [1]

HR-FAB-MSm/z: 731.3983 (M + Na)+ [1]

FAB-MS (positive ion mode) m/z: 731 (M + Na)+ [1]

1H NMR (J/Hz, CD3OD): 0.84, 0.86, 0.98, 1.06 (s, CH3-29, 19, 18, 28), 0.91 (d, J = 5.9, CH3-21), 1.22 (d, J = 7.2, CH3-27), 2.03, 2.19 (m, H2-24), 2.08 (s, Ac), 2.41, 2.66 (ABq, J = 10.5, H2-15), 2.73 (m, H-25), 3.19 (m, H-3), 4.30, 4.46 (ABq, J = 10.5, H2-30), 4.38 (m, H-23), 4.86 (m, H-20), 4.31 (d, J = 7.2, H-1 of Glc) [1]

13 C NMR (CD 3OD): [ 1]

Table 1

C-1

39.4

C-16

179.9

Glc-1

106.6

2

27.0

17

37.0

2

75.6

3

90.3

18

18.6

3

78.2

4

40.2

19

16.6

4

71.6

5

56.3

20

76.4

5

77.6

6

19.0

21

12.3

6

62.8

7

35.4

22

37.4

   

8

42.2

23

78.2

OAc-1

172.4

9

54.0

24

36.4

2

21.2

10

37.9

25

35.0

   

11

21.6

References

  1. 1.
    M. Yoshikawa, T. Murakami, T. Ueda, H. Matsuda, J. Yamahara, N. Murakami, Chem. Pharm. Bull. 44(9), 1736 (1996)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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