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Polygalasaponin XXVI

Reference work entry

CAS Registry Number: 173938-33-5 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 2β,3β,23-Trihydroxy-olean-11,13(18)-dien-28-oic Acid

Biological source: Polygala japonica [1]

C42H66O15: 810.440

[α]D20 + 52.1° (c 0.98, C5H5N) [1]

FAB-MS (positive ion mode) m/z: 833 (M + Na)+ [1]

1H NMR (400 MHz, J/Hz, C5D5N): 0.90 (s, CH3-30), 0.94 (s, CH3-29), 1.05 (H- 27), 1.13 (s, CH3-26), 1.41 (s, CH3-24), 1.61 (s, CH3-25), 3.74, 4.39 (d, J = 11.0, H2-23), 4.26 (d, J = 3.0, H-3), 4.83 (m, H-2), 5.89 (d, J = 11, H-11), 6.64 (brd, J = 11.0, H-12)

β-D-Glcp: 5.13 (d, J = 8.0, H-1), 4.11 (t, J = 8.5, H-2), 4.22 (t, J = 8.5, H-3), 4.13 (t, J = 9.0, H-4), 3.84 (m, H-5), 4.27, 4.44 (H2-6)

β-D-Glcp′: 5.34 (d, J = 8.0, H-1), 4.09 (t, J = 8.5, H-2), 4.19 (t, J = 8.5, H-3), 4.23 (t, J = 9.0, H-4), 3.92 (m, H-5), 4.39 (H-6), 4.51 (dd, J = 12.0, 2.0, H-6) [1]

13 C NMR (100 MHz, C 5D 5N): [ 1]

Table 1

C-1

43.6

C-16

25.7...

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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