Betavulgaroside VIII

Reference work entry

CAS Registry Number: 178535-52-9 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]

C46H68O20: 940.430

Mp: 215–217°C (CHCl3–MeOH) [1]

[α]D30 + 64.3° (c 0.1, MeOH) [1]

IR (KBr) νmax cm−1: 3449, 1751, 1735, 1657, 1076, 889 [1]

FAB-MS (negative ion mode) m/z: 939 (M-H) [1]

FAB-MS (positive ion mode) m/z: 963 (M + Na)+ [1]

1H NMR (270 MHz, J/Hz, C5D5N): 0.81, 0.96, 1.06, 1.25, 1.28 (s, CH3-25, 24, 26, 27, 23), 3.12 (dd-like, H-18), 3.37 (dd-like, H-3), 4.69, 4.76 (s, H2-29), 5.07, 5.41 (d, J = 16.5, H2-2 of glycolic acid), 5.31 (d, J = 3.3, H-2 of tartronaldehydic acid), 5.42 (brs, H-12), 6.32 (d, J = 3.3, H-3 of tartronaldehydic acid)

β-D-Glcp: 6.27 (d, J = 7.6, H-1)

β-D-GlcUAp: 5.00 (d, J = 7.9, H-1), 4.50 (m, H-3) [1]

13 C NMR (68 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

74.8

2

74.1

3

89.2

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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