Natural Compounds pp 1000-1000 | Cite as

Hovenidulcioside A1

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

Biological source: Hovenia dulcis [1]

C44H68O16: 852.450

Mp: 183–186°C (aq. MeOH) [1]

[α]D26 −48.5° (c 0.5, MeOH) [1]

UV λmax nm (log ε): 224 (3.8) [1]

IR (KBr) νmax cm−1: 3453, 2944, 1765, 1751, 1602, 1046 [1]

HR-FAB-MSm/z: 851.4429 (M-H) [1]

FAB-MS (positive ion mode) m/z: 875 (M + Na)+ [1]

1H NMR (J/Hz, CD3OD): 0.92, 0.93, 1.06, 1.12 (s, CH3-29, 19, 18, 28), 0.97 (d, J = 9, 21-CH3), 1.91 (dd, J = 1.6, 1.7, CH3-27), 2.12 (s, Ac), 2.49, 2.71 (ABq, J = 19.0, CH2-15), 3.21 (m, H-3), 4.34, 4.53 (ABq, J = 10.7, CH2-30), 4.46 (d, J = 7.3, H-1 of Glc), 4.75 (t-like, H-20), 5.13 (brs, H-23), 7.34 (brs, H-24), 5.43 (brs, H-1 of Rha), 1.27 (d, J = 5.9, CH3-6 of Rha) [1]

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

Table 1

C-1

39.7

C-16

179.9

Glc-1

105.6

2

27.3

17

37.0

2

78.9

3

89.9

18

18.6

3

79.4

4

40.3

19

16.7

4

72.0

5

56.6

20

74.8

5

77.6

6

18.9

21

11.9

6

62.8

7

35.4...

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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