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Wistariasaponin B1

Reference work entry

CAS Registry Number: 126594-45-4 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – Wistariasapogenol B

Biological source: Wisteria brachybotrys [1]

C48H78O18: 942.518 (Me ester)

[α]D20 −10.9° (c 0.87, MeOH) (Me ester) [1]

IR (KBr) νmax cm−1: 3400–3600, 1710 [1]

FAB-MSm/z: 941 (M-1), 795 (M-Rha) [1]

1H NMR (400 MHz, J/Hz, C5D5N) (Me ester): 5.37 (t-like, J = 1.0, H-12), 1.52, 1.35, 1.23, 1.16, 1.05, 0.86 (s, CH3 × 6), 4.34, 3.52 (d, J = 11.7, H2-24), 3.80, 3.93 (d, J = 10.4, H2-30)

β-D-GlcUAp: 4.92 (d, J = 7.8, H-1), 4.26 (dd, J = 8.9, 7.8, H-2), 4.42 (t, J = 8.9, H-3), 4.30 (dd, J = 9.5, 9.0, H-4), 4.43 (d, J = 9.5, H-5), 3.77 (s, COOMe)

β-D-Xylp: 5.49 (d, J = 7.6, H-1), 4.22 (dd, J = 9.0, 7.6, H-2), 4.02 (t, J = 9.0, H-3), 4.32 (dd, J = 9.7, 5.6, H-5), 3.48 (t, J = 10.4, H-5)

α-L-Rhap: 6.16 (d, J = 1.2, H-1), 4.63 (dd, J = 3.4, 1.7, H-2), 4.51 (dd, J = 9.3, 3.4, H-3), 4.16 (t, J =...

References

  1. 1.
    T. Konoshima, M. Kozuka, M. Haruna, K. Ito, T. Kimura, H. Tokuda, Chem. Pharm. Bull. 37(10), 2731 (1989)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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