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Betavulgaroside X

Reference work entry

CAS Registry Number: 219805-92-2 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – Akebonoic Acid

Biological source: Beta vulgaris L. [1]

C46H70O18: 910.456

Mp: 211–213°C [1]

[α]D26 + 46.9° (c 0.1, MeOH) [1]

IR (KBr) νmax cm−1: 3432, 1740, 1736, 1076, 891 [1]

FAB-MS (negative ion mode) m/z: 909 (M-H) [1]

FAB-MS (positive ion mode) m/z: 933 (M + Na)+ [1]

1H NMR (500 MHz, J/Hz, C5D5N): 0.81, 0.99, 1.07, 1.26, 1.31 (s, CH3-25, 24, 26, 27, 23), 3.12 (dd, J = 4.7, 13.9, H-18), 3.38 (dd, J = 4.6, 11.9, H-3), 4.69, 4.76 (s, H2-29), 5.43 (brs, H-12)

β-D-Glcp: 6.28 (d, J = 8.2, H-1)

β-D-GlcUAp:5.04 (d, J = 7.6, H-1), 4.18 (m, H-2), 4.39 (m, H-3), 4.57 (t, J = 9.5, H-4)

β-D-Xylp: 5.37 (d, J = 7.6, H-1) [1]

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

Table 1

C-1

38.7

C-16

23.7

GlcUA-1

106.8

Glc-1

95.9

2

26.6

17

47.3

2

74.6

2

74.1

3

89.3

18

47.7

3

86.5

3

78.8

4

39.5

19

41.7

4

71.4

4

71.2

5

55.7

20

148.5

5

77.6

References

  1. 1.
    M. Yoshikawa, T. Murakami, M. Kadoya, J. Yamahara, H. Matsuda, Chem. Pharm. Bull. 46(11), 1758 (1998)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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