Natural Compounds pp 1008-1009 | Cite as

Lotoidoside B

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Miscellaneous Glycosides – Mollugogenol E

Biological source: Clinus lotoides [1]

C47H78O17: 914.523

[α]D22 −22.6° (c 0.5, MeOH) [1]

ESI-MSm/z: 915 [M + H]+, 769 [(M + H)-146]+, 637[(M + H)-146-132]+, 475 [(M + H)-146-132-162]+ [1]

HR-ESI-MSm/z: 915.5317 [M + H]+ [1]

1H NMR (600 MHz, J/Hz, CD3OD): 4.19 (dt, J = 4.0, 10.5, Hα-16), 3.14 (dd, J = 11.0, 4.5, H-3), 2.72 (2H, m, Ha-16, Hα-21), 2.32 (s, H-5), 1.40 (s, CH3-29), 1.27 (s, CH3-24), 1.25 (s, CH3-30), 1.22 (s, CH3-27), 1.11 (s, CH3-23), 1.04 (s, CH3-26), 0.89 (s, CH3-28);

β-D-Xylp: 4.41 (d, J = 7.5, H-1), 3.46 (dd, J = 7.5, 9.0, H-2), 3.41 (dd, J = 9.0, 9.0, H-3), 3.50 (m, H-4), 3.21 (t, J = 11.0, H-5), 3.91 (dd, J = 4.5, 11.0, H-5); α-L-Rhap: 5.36 (d, J = 1.5, H-1), 3.98 (dd, J = 1.5, 2.5, H-2), 3.76 (dd, J = 2.5, 9.0, H-3), 3.42 (dd, J = 9.0, 9.0, H-4), 3.97 (m, H-5), 1.26 (d, J = 6.5, CH3-6); β-D-Glcp: 4.63 (d, J = 7.5,...

References

  1. 1.
    A.I. Hamed, S. Piacente, C. Autore, S. Marzocco, C. Pizza, W. Oleszek, Planta Medica 71, 554 (2005)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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