Sinocrassuloside I

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]

C48H76O21: 988.487

[α]D26 + 17.6° (c 0.051, MeOH) [1]

IR (KBr) νmax cm−1: 3410, 2936, 1752, 1654, 1459, 1381, 1265, 1064, 699, 511, 419 [1]

FAB-MSm/z: 989 [M + H]+ and 1011 [M + Na]+ [1]

HR-FAB-MSm/z: 989.4922 [M + H]+ [1]

1H NMR (500 MHz, J/Hz, C5D5N): 1.21, 1.63 (H2-1), 1.93, 1.96 (H2-2), 4.68 (dd, J = 10.5, 6.0, H-3), 2.02 (H-5), 1.50, 1.69 (H2-6), 1.00, 1.29 (H2-7), 1.94 (H-9), 2.04, 1.96 (H2-11), 5.59 (brs, H-12), 1.65, 2.40 (H2-15), 5.20 (brs, H-16), 3.47 (dd, J = 14.0, 4.0, H-18), 2.74 (t, J = 14.0, H-19), 1.32 (H-19), 1.22, 2.34 (H2-21), 2.08, 2.32 (H2-22), 1.63 (s, CH3-24), 1.03 (s, CH3-25), 1.12 (s, CH3-26), 1.74 (s, CH3-27), 0.91 (s, CH3-29), 0.98 (s, CH3-30); β-D-Glcp: 6.18 (d, J = 9.0, H-1), 4.04 (t, J = 9.0, H-2), 4.18 (H-3),...

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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