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Natural Compounds pp 1001-1001 | Cite as

Hovenidulcioside A2

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

Biological source: Hovenia dulcis [1]

C38H58O12: 706.392

Mp: 157–160°C (aq. MeOH) [1]

[α]D27 −14.0° (c 0.1, MeOH) [1]

UV λmax nm (log ε): 234 (3.8) [1]

IR (KBr) νmax cm−1: 3432, 1768, 1750, 1734, 1600, 1034 [1]

FAB-MS (positive ion mode) m/z: 729.3826 (M + Na)+ [1]

1H NMR (J/Hz, CD3OD): 0.84, 0.87, 0.99, 1.06 (s, CH3-29, 19, 18, 28), 0.92 (d, J = 7.2, CH3-21), 1.84 (dd-like, CH3-27), 2.05 (s, Ac), 2.43, 2.64 (ABq, J = 19.0, H2-15), 3.18 (m, H-3), 4.26, 4.47 (ABq, J = 10.5, CH2-30), 4.68 (m, H-20), 5.06 (brs, H-23), 7.27 (brs, H-24), 4.31 (d, J = 7.6, H-1 of Glc) [1]

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

Table 1

C-1

39.5

C-16

180.1

Glc-1

106.7

2

26.7

17

37.1

2

75.7

3

90.5

18

18.6

3

78.3

4

40.3

19

16.6

4

71.7

5

56.4

20

74.8

5

77.7

6

19.0

21

11.9

6

62.8

7

35.4

22

35.0

   

8

42.3

23

80.6

   

9

54.0

24

151.0

   

10

37.9

25

130.5

   

11

21.6

26

176.2

   

12

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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