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Polygalasaponin XXII

Reference work entry

CAS Registry Number: 173933-37-4 Open image in new window

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

Biological source: Polygala japonica [1]

C58H92O28: 1236.577

[α]D20 −1.1° (c 0.92, C5H5N) [1]

FAB-MS (positive ion mode) m/z: 1260 (M + Na)+ [1]

1H NMR (400 MHz, J/Hz, C5D5N): 0.85 (s, CH3-29), 0.86 (s, CH3-30), 1.12 (s, CH3-26), 1.22 (s, CH3-27), 1.59 (s, CH3-25), 1.95 (s, CH3-24), 3.10 (dd, J = 14.0, 4.0, H-18), 4.69 (d, J = 4.0, H-3), 4.79 (m, H-2), 5.45 (t-like, H-12)

β-D-Glcp: 5.08 (d, J = 8.0, H-1), 3.93 (t, J = 8.0, H-2), 4.14 (H-3), 4.15 (H-4), 3.92 (m, H-5), 4.28 (H-6), 4.46 (dd, J = 12.0, 2.0, H-6)

β-D-Glcp′: 6.23 (d, J = 8.0, H-1), 4.29 (H-2), 4.15 (H-3), 4.26 (H-4), 3.94 (m, H-5), 4.29, 4.30 (H2-6)

α-L-Rhap: 5.92 (brs, H-1), 4.67 (H-2), 4.59 (dd, J = 9.0, 3.0, H-3), 4.31 (H-4), 4.36 (m, H-5), 1.76 (d, J = 6.0, CH3-6)

β-D-Apif: 5.79 (d, J = 2.5, H-1), 4.74 (d, J = 2.5, H-2),...

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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