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Sinocrassuloside III

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]

C55H86O25: 1146.545

[α]D26 + 30.4° (c 0.023, MeOH) [1]

IR (KBr) νmax cm−1: 3421, 2939, 1720, 1651, 1539, 1458, 1399, 1072, 520 [1]

FAB-MSm/z: 1147 [M + H]+ and 1169 [M + Na]+ [1]

HR-FAB-MSm/z: 1169.5352 [M + Na]+ [1]

1H NMR (500 MHz, J/Hz, C5D5N): 1.21, 1.64 (H2-1), 1.93, 1.96 (H2-2), 4.68 (dd, J = 11.0, 6.0, H-3), 2.03 (H-5), 1.50, 1.70 (H2-6), 1.00, 1.30 (H2-7), 1.97 (H-9), 1.98, 2.04 (H2-11), 5.58 (brs, H-12), 1.64, 2.41 (H2-15), 5.19 (brs, H-16), 3.47 (dd, J = 13.5, 3.0, H-18), 2.74 (t, J = 13.5, H-19), 1.28 (H-19), 1.22, 2.37 (H2-21), 2.10, 2.34 (H2-22), 1.64 (s, CH3-24), 1.05 (s, CH3-25), 1.12 (s, CH3-26), 1.74 (s, CH3-27), 0.92 (s, CH3-29), 1.01 (s, CH3-30); β-D-Glcp: 6.18 (d, J = 9.0, H-1), 4.01 (t, J = 9.0, H-2), 4.17 (t, J = 9.0,...

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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