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Sinocrassuloside IV

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Oleanene Type – 3,16α-Dihydroxy-3,4-seco-olean-4(24),12-dien-23,28-dioic Acid

Biological source: Sinocrassula asclepiadea [1]

C48H74O20: 970.477

[α]D26 + 30.4° (c 0.023, MeOH) [1]

IR (KBr) νmax cm−1: 3421, 2924, 1720, 1462, 1061, 710, 517, 424 [1]

FAB-MSm/z: 971 [M + H]+ and 993 [M + Na]+ [1]

HR-FAB-MSm/z: 993.4697 [M + Na]+ [1]

1H NMR (500 MHz, J/Hz, C5D5N): 1.10 (td, J = 12.5, 4.5, H-1), 1.55 (t, J = 12.5, H-1), 1.72, 2.38 (H2-2), 3.74, 3.89 (H2-3), 3.22 (d, J = 12.5, H-5), 1.35 (d, J = 10.5, H-6), 1.84 (d, J = 13.0, H-6), 1.28, 1.60 (H2-7), 2.33 (H-9), 2.04, 2.04 (H2-11), 5.56 (t, J = 4.0, H-12), 1.70, 2.45 (d, J = 12.0, H2-15), 5.25 (brs, H-16), 3.47 (dd, J = 14.0, 4.0, H-18), 2.73 (t, J = 14.0, H-19), 1.30 (H-19), 1.25, 2.33 (H2-21), 2.12 (td, J = 15.0, 5.0, H-22), 2.36 (H-22), 6.50, 5.54 (s, H2-24), 0.93 (s, CH3-25), 1.18 (s, CH3-26), 1.73 (s, CH

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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