Advertisement

Bourneioside B

Reference work entry

Open image in new window

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]

C48H76O19: 956.498

Mp: 214–216°C [1]

[α]D21 + 40.0° (c 0.10, MeOH) [1]

IR (KBr) νmax cm−1: 3400, 2870, 1736, 1640, 1450, 1377, 1078, 890 [1]

FAB-MSm/z: 981 [M + Na]+, 766 [M-C6H10O5-CH2O]+, 695 [M + H-2C6H10O5]+, 613, 517, 501 [1]

1H NMR (400 MHz, J/Hz, C5D5N): 0.93, 1.57 (H2-1), 1.92, 2.27 (H2-2), 4.25 (H-3), 1.57 (m, H-5), 1.38, 1.65 (H2-6), 1.28, 1.50 (H2-7), 1.40 (H-9), 1.22, 1.38 (H2-11), 1.20 (m, H-12), 2.63 (H-13), 1.16, 1.98 (m, H2-15), 1.46, 2.61 (H2-16), 1.70 (H-18), 3.38 (dt, J = 10.9, 4.8, H-19), 1.38, 2.20 (H2-21), 1.45, 2.20 (H2-22), 3.68, 4.31 (H2-23), 0.94 (s, CH3-24), 0.85 (s, CH3-25), 1.13 (s, CH3-26), 0.97 (s, CH3-27), 4.68, 4.84 (brs, H2-29), 1.69 (s, CH3-30)

β-D-Glcp: 5.10 (d, J = 8.0, H-1), 4.01 (m, H-2), 4.12 (H-3), 4.18 (H-4), 3.86 (m, H-5), 4.36,...

References

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

Copyright information

© Springer Science+Business Media New York 2013

Personalised recommendations