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Polygalasaponin XXIII

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 2-Oxo-3β-hydroxy-olean-12-en-23,28-dioic Acid

Biological source: Polygala japonica [1]

C53H82O24: 1102.519

[α]D20 + 20.6° (c 0.85, C5H5N) [1]

FAB-MS (positive ion mode) m/z: 1126 (M + Na)+ [1]

1H NMR (400 MHz, J/Hz, C5D5N): 5.74 (s, H-3), 5.41 (t-like, H-12), 3.11 (dd, J = 14.0, 4.0, H-18), 1.51 (s, CH3-24), 0.97 (s, CH3-25), 1.05 (s, CH3-26), 1.24 (s, CH3-27), 0.85 (s, CH3-29), 0.85 (s, CH3-30)

β-D-Glcp: 5.13 (d, J = 7.5, H-1), 4.03 (H-2), 4.10 (t, J = 9.0, H-3), 4.14 (t, J = 9.0, H-4), 3.83 (m, H-5), 4.25 (H-6), 4.39 (H-6)

β-D-Glcp′: 6.19 (d, J = 6.5, H-1), 4.35 (H-2), 4.27 (H-3), 4.28 (H-4), 3.95 (m, H-5), 4.26, 4.34 (H2-6)

α-L-Rhap: 6.40 (brs, H-1), 4.81 (brs, H-2), 4.67 (dd, J = 9.0, 3.0, H-3), 4.33 (H-4), 4.49 (m, H-5), 1.78 (d, J = 6.0, CH3-6)

β-D-Xylp: 5.04 (d, J = 7.0, H-1), 4.05 (H-2), 4.06 (H-3), 4.19 (H-4), 3.53 (t, J =...

References

  1. 1.
    D. Zhang, T. Miyase, M. Kuroyanagi, K. Umehara, A. Ueno, Chem. Pharm. Bull. 44(1), 173 (1996)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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