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Sinocrassuloside II

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 3β,16α-Dihydroxy-olean-12-en-23,28-dioic Acid

Biological source: Sinocrassula asclepiadea [1]

C54H84O25: 1132.530

[α]D26 + 13.9° (c 0.074, MeOH) [1]

IR (KBr) νmax cm−1: 3422, 2935, 1736, 1718, 1702, 1214, 1164, 1074, 912, 512, 419 [1]

FAB-MSm/z: 1133 [M + H]+ and 1155 [M + Na]+ [1]

HR-FAB-MSm/z: 1133.5421 [M + H]+ [1]

1H NMR (500 MHz, J/Hz, C5D5N): 1.19, 1.63 (H2-1), 1.92, 1.94 (H2-2), 4.64 (dd, J = 10.0, 6.5, H-3), 1.99 (H-5), 1.46, 1.67 (H2-6), 0.96, 1.27 (H2-7), 1.93 (H-9), 2.01, 2.04 (H2-11), 5.55 (brs, H-12), 1.63, 2.36 (H2-15), 5.17 (brs, H-16), 3.44 (dd, J = 14.0, 4.0, H-18), 2.70 (t, J = 14.0, H-19), 1.29 (H-19), 1.21, 2.34 (H2-21), 2.04, 2.29 (H2-22), 1.60 (s, CH3-24), 1.02 (s, CH3-25), 1.08 (s, CH3-26), 1.70 (s, CH3-27), 0.89 (s, CH3-29), 0.98 (s, CH3-30); β-D-Glcp: 6.14 (d, J = 9.0, H-1), 3.99 (t, J = 9.0, H-2), 4.13 (t, J =...

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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