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Polygalasaponin XXI

Reference work entry

CAS Registry Number: 173933-36-3 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]

C53H84O24: 1104.535

[α]D21 + 31.3° (c 0.78, C5H5N) [1]

FAB-MS (positive ion mode) m/z: 1128 (M + Na)+ [1]

1H NMR (400 MHz, J/Hz, C5D5N): 0.85 (s, CH3-29), 0.86 (s, CH3-30), 1.14 (s, CH3-26), 1.24 (s, CH3-27), 1.54 (s, CH3-25), 1.94 (s, CH3-24), 3.12 (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 (d, J = 8.5, H-2), 4.14 (H-3), 4.15 (H-4), 3.91 (m, H-5), 4.28 (H-6), 4.46 (dd, J = 12.0, 2.5, H-6)

β-D-Glcp′: 6.19 (d, J = 8.0, H-1), 4.36 (H-2), 4.27 (H-3), 4.28 (H-4), 3.96 (m, H-5), 4.32 (H-6), 4.38 (dd, J = 12.0, 2.5, H-6)

α-L-Rhap: 6.39 (d, J = 1.5, H-1), 4.81 (dd, J = 3.0, 1.5, H-2), 4.69 (dd, J = 9.0, 3.0, H-3), 4.34 (H-4), 4.51 (m, H-5), 1.79 (d, J = 6.0, CH3-6)

β-D-Xylp:...

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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