Sinocrassuloside X

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

Biological source: Sinocrassula asclepiadea [1]

C69H100O30: 1408.629

[α]D26 + 38.5° (c 0.026, MeOH) [1]

IR (KBr) νmax cm−1: 3421, 2935, 1735, 1635, 1511, 1253, I157, 1041, 516 [1]

FAB-MSm/z: 1409 [M + H]+ [1]

HR-FAB-MSm/z: 1409.6387 [M + H]+ [1]

1H NMR (400 MHz, J/Hz, C5D5N): 0.85, 1.38 (H2-1), 1.80, 2.10 (H2-2), 3.93 (H-3), 1.31 (H-5), 0.87, 1.32 (H2-6), 1.53 (H-7), 1.80 (H-9), 1.91 (H-11), 5.56 (brs, H-12), 1.92, 2.20 (H2-15), 5.28 (brs, H-16), 3.39 (H-18), 2.74 (t, J = 12.4, H-19), 1.33 (H-19), 1.28, 2.41 (H2-21), 2.20, 2.40 (H2-22), 9.82 (s, H-23), 1.37 (s, CH3-24), 0.80 (s, CH3-25), 1.06 (s, CH3-26), 1.75 (s, CH3-27), 0.95 (s, s, CH3-29), 0.99 (s, CH3-30)

β-D-GlcUAp: 4.86 (d, J = 7.3, H-1), 4.32 (H-2), 4.23 (H-3), 4.41 (H-4), 4.48 (H-5)

β-D-Galp: 5.52 (d, J = 7.3, H-1), 4.46 (H-2), 4.14 (H-3), 4.57 (H-4), 4.01 (H-5),...

References

  1. 1.
    J. Zhao, N. Nakamura, M. Hattori, X.-W. Yang, K. Komatsu, M.-H. Qiu, Chem. Pharm. Bull. 52(2), 230 (2004)CrossRefGoogle Scholar
  2. 2.
    Jiangsu New Medicinal College, Dictionary of Chinese Materia Medica (Shanghai Scientific and Technological Publisher, Shanghai, 1977), p. 400Google Scholar

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© Springer Science+Business Media New York 2013

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