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Bourneioside A

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Miscellaneous Glycosides – 3α,23-Dihydroxy-lup-20(29)-en-28-oic Acid

Biological source: Lonicera bournei [1]

C42H68O14: 796.460

Mp: 205–207°C [1]

[α]D21 + 55.0° (c 0.10, MeOH) [1]

IR (KBr) νmax cm−1: 3400, 2871, 1741, 1639, 1458, 1377, 1076, 890 [1]

FAB-MSm/z: 819 [M + Na]+, 635 [M + H-C6H10O5]+, 616 [M- C6H12O6]+, 518, 500 [1]

1H NMR (400 MHz, J/Hz, C5D5N): 0.91, 1.58 (H2-1), 1.92, 2.29 (H2-2), 4.28 (H-3), 1.57 (m, H-5), 1.35, 1.67 (H2-6), 1.29, 1.51 (H2-7), 1.41 (H-9), 1.17, 1.38 (H2-11), 1.19, 1.89 (H2-12), 2.67 (m, H-13), 1.18, 2.02 (m, H2-15), 1.46, 2.63 (H2-16), 1.73 (m, H-18), 3.40 (dt, 10.7, 4.4, H-19), 1.38, 2.09 (H2-21), 1.50, 2.17 (H2-22), 3.69, 4.33 (m, H2-23), 0.95 (s, CH3-24), 0.84 (s, CH3-25), 1.14 (s, CH3-26), 0.99 (s, CH3-27), 4.71, 4.86 (s, CH2-29), 1.73 (s, CH3-30)

β-D-Glcp: 5.12 (d, J = 7.8, H-1), 4.02 (m, H-2), 4.14 (H-3), 4.22 (H-4), 3.87 (m, H-5), 4.35,...

References

  1. 1.
    S.M. Abdel-Khalik, T. Miyase, H.A. El-Ashaal, F.R. Melek, Phytochemistry 54, 795 (2000)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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